diff --git a/api/configs/packaging/__init__.py b/api/configs/packaging/__init__.py
index 278b1d3b8f4a83..a54c5bf5ee6c7b 100644
--- a/api/configs/packaging/__init__.py
+++ b/api/configs/packaging/__init__.py
@@ -9,7 +9,7 @@ class PackagingInfo(BaseSettings):
 
     CURRENT_VERSION: str = Field(
         description="Dify version",
-        default="0.15.0",
+        default="0.15.1",
     )
 
     COMMIT_SHA: str = Field(
diff --git a/api/controllers/console/app/audio.py b/api/controllers/console/app/audio.py
index 9d26af276d2fc3..12d9157dda5e2a 100644
--- a/api/controllers/console/app/audio.py
+++ b/api/controllers/console/app/audio.py
@@ -22,7 +22,7 @@
 from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotInitError, QuotaExceededError
 from core.model_runtime.errors.invoke import InvokeError
 from libs.login import login_required
-from models.model import AppMode
+from models import App, AppMode
 from services.audio_service import AudioService
 from services.errors.audio import (
     AudioTooLargeServiceError,
@@ -79,7 +79,7 @@ class ChatMessageTextApi(Resource):
     @login_required
     @account_initialization_required
     @get_app_model
-    def post(self, app_model):
+    def post(self, app_model: App):
         from werkzeug.exceptions import InternalServerError
 
         try:
@@ -98,9 +98,13 @@ def post(self, app_model):
                 and app_model.workflow.features_dict
             ):
                 text_to_speech = app_model.workflow.features_dict.get("text_to_speech")
+                if text_to_speech is None:
+                    raise ValueError("TTS is not enabled")
                 voice = args.get("voice") or text_to_speech.get("voice")
             else:
                 try:
+                    if app_model.app_model_config is None:
+                        raise ValueError("AppModelConfig not found")
                     voice = args.get("voice") or app_model.app_model_config.text_to_speech_dict.get("voice")
                 except Exception:
                     voice = None
diff --git a/api/controllers/console/datasets/datasets.py b/api/controllers/console/datasets/datasets.py
index 45c38dba3eadcf..386e45c58e5042 100644
--- a/api/controllers/console/datasets/datasets.py
+++ b/api/controllers/console/datasets/datasets.py
@@ -10,12 +10,7 @@
 from controllers.console.apikey import api_key_fields, api_key_list
 from controllers.console.app.error import ProviderNotInitializeError
 from controllers.console.datasets.error import DatasetInUseError, DatasetNameDuplicateError, IndexingEstimateError
-from controllers.console.wraps import (
-    account_initialization_required,
-    cloud_edition_billing_rate_limit_check,
-    enterprise_license_required,
-    setup_required,
-)
+from controllers.console.wraps import account_initialization_required, enterprise_license_required, setup_required
 from core.errors.error import LLMBadRequestError, ProviderTokenNotInitError
 from core.indexing_runner import IndexingRunner
 from core.model_runtime.entities.model_entities import ModelType
@@ -98,7 +93,6 @@ def get(self):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self):
         parser = reqparse.RequestParser()
         parser.add_argument(
@@ -213,7 +207,6 @@ def get(self, dataset_id):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id):
         dataset_id_str = str(dataset_id)
         dataset = DatasetService.get_dataset(dataset_id_str)
@@ -317,7 +310,6 @@ def patch(self, dataset_id):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def delete(self, dataset_id):
         dataset_id_str = str(dataset_id)
 
diff --git a/api/controllers/console/datasets/datasets_document.py b/api/controllers/console/datasets/datasets_document.py
index c625b640a7a250..c11beaeee1035c 100644
--- a/api/controllers/console/datasets/datasets_document.py
+++ b/api/controllers/console/datasets/datasets_document.py
@@ -27,7 +27,6 @@
 )
 from controllers.console.wraps import (
     account_initialization_required,
-    cloud_edition_billing_rate_limit_check,
     cloud_edition_billing_resource_check,
     setup_required,
 )
@@ -231,7 +230,6 @@ def get(self, dataset_id):
     @account_initialization_required
     @marshal_with(documents_and_batch_fields)
     @cloud_edition_billing_resource_check("vector_space")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self, dataset_id):
         dataset_id = str(dataset_id)
 
@@ -287,7 +285,6 @@ def post(self, dataset_id):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def delete(self, dataset_id):
         dataset_id = str(dataset_id)
         dataset = DatasetService.get_dataset(dataset_id)
@@ -311,7 +308,6 @@ class DatasetInitApi(Resource):
     @account_initialization_required
     @marshal_with(dataset_and_document_fields)
     @cloud_edition_billing_resource_check("vector_space")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self):
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
@@ -684,7 +680,6 @@ class DocumentProcessingApi(DocumentResource):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, document_id, action):
         dataset_id = str(dataset_id)
         document_id = str(document_id)
@@ -721,7 +716,6 @@ class DocumentDeleteApi(DocumentResource):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def delete(self, dataset_id, document_id):
         dataset_id = str(dataset_id)
         document_id = str(document_id)
@@ -790,7 +784,6 @@ class DocumentStatusApi(DocumentResource):
     @login_required
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, action):
         dataset_id = str(dataset_id)
         dataset = DatasetService.get_dataset(dataset_id)
@@ -886,7 +879,6 @@ class DocumentPauseApi(DocumentResource):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, document_id):
         """pause document."""
         dataset_id = str(dataset_id)
@@ -919,7 +911,6 @@ class DocumentRecoverApi(DocumentResource):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, document_id):
         """recover document."""
         dataset_id = str(dataset_id)
@@ -949,7 +940,6 @@ class DocumentRetryApi(DocumentResource):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self, dataset_id):
         """retry document."""
 
diff --git a/api/controllers/console/datasets/datasets_segments.py b/api/controllers/console/datasets/datasets_segments.py
index 2dd86a1b32d996..d48dbe1772c353 100644
--- a/api/controllers/console/datasets/datasets_segments.py
+++ b/api/controllers/console/datasets/datasets_segments.py
@@ -19,7 +19,6 @@
 from controllers.console.wraps import (
     account_initialization_required,
     cloud_edition_billing_knowledge_limit_check,
-    cloud_edition_billing_rate_limit_check,
     cloud_edition_billing_resource_check,
     setup_required,
 )
@@ -107,7 +106,6 @@ def get(self, dataset_id, document_id):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def delete(self, dataset_id, document_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -139,7 +137,6 @@ class DatasetDocumentSegmentApi(Resource):
     @login_required
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, document_id, action):
         dataset_id = str(dataset_id)
         dataset = DatasetService.get_dataset(dataset_id)
@@ -195,7 +192,6 @@ class DatasetDocumentSegmentAddApi(Resource):
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
     @cloud_edition_billing_knowledge_limit_check("add_segment")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self, dataset_id, document_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -246,7 +242,6 @@ class DatasetDocumentSegmentUpdateApi(Resource):
     @login_required
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, document_id, segment_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -307,7 +302,6 @@ def patch(self, dataset_id, document_id, segment_id):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def delete(self, dataset_id, document_id, segment_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -345,7 +339,6 @@ class DatasetDocumentSegmentBatchImportApi(Resource):
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
     @cloud_edition_billing_knowledge_limit_check("add_segment")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self, dataset_id, document_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -412,7 +405,6 @@ class ChildChunkAddApi(Resource):
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
     @cloud_edition_billing_knowledge_limit_check("add_segment")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self, dataset_id, document_id, segment_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -511,7 +503,6 @@ def get(self, dataset_id, document_id, segment_id):
     @login_required
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, document_id, segment_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -555,7 +546,6 @@ class ChildChunkUpdateApi(Resource):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def delete(self, dataset_id, document_id, segment_id, child_chunk_id):
         # check dataset
         dataset_id = str(dataset_id)
@@ -600,7 +590,6 @@ def delete(self, dataset_id, document_id, segment_id, child_chunk_id):
     @login_required
     @account_initialization_required
     @cloud_edition_billing_resource_check("vector_space")
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def patch(self, dataset_id, document_id, segment_id, child_chunk_id):
         # check dataset
         dataset_id = str(dataset_id)
diff --git a/api/controllers/console/datasets/hit_testing.py b/api/controllers/console/datasets/hit_testing.py
index d344e9d1267bfa..18b746f547287c 100644
--- a/api/controllers/console/datasets/hit_testing.py
+++ b/api/controllers/console/datasets/hit_testing.py
@@ -2,11 +2,7 @@
 
 from controllers.console import api
 from controllers.console.datasets.hit_testing_base import DatasetsHitTestingBase
-from controllers.console.wraps import (
-    account_initialization_required,
-    cloud_edition_billing_rate_limit_check,
-    setup_required,
-)
+from controllers.console.wraps import account_initialization_required, setup_required
 from libs.login import login_required
 
 
@@ -14,7 +10,6 @@ class HitTestingApi(Resource, DatasetsHitTestingBase):
     @setup_required
     @login_required
     @account_initialization_required
-    @cloud_edition_billing_rate_limit_check("knowledge")
     def post(self, dataset_id):
         dataset_id_str = str(dataset_id)
 
diff --git a/api/controllers/console/wraps.py b/api/controllers/console/wraps.py
index e92c0ae95200ea..111db7ccf2da04 100644
--- a/api/controllers/console/wraps.py
+++ b/api/controllers/console/wraps.py
@@ -1,6 +1,5 @@
 import json
 import os
-import time
 from functools import wraps
 
 from flask import abort, request
@@ -8,7 +7,6 @@
 
 from configs import dify_config
 from controllers.console.workspace.error import AccountNotInitializedError
-from extensions.ext_redis import redis_client
 from models.model import DifySetup
 from services.feature_service import FeatureService, LicenseStatus
 from services.operation_service import OperationService
@@ -68,9 +66,7 @@ def decorated(*args, **kwargs):
                 elif resource == "apps" and 0 < apps.limit <= apps.size:
                     abort(403, "The number of apps has reached the limit of your subscription.")
                 elif resource == "vector_space" and 0 < vector_space.limit <= vector_space.size:
-                    abort(
-                        403, "The capacity of the knowledge storage space has reached the limit of your subscription."
-                    )
+                    abort(403, "The capacity of the vector space has reached the limit of your subscription.")
                 elif resource == "documents" and 0 < documents_upload_quota.limit <= documents_upload_quota.size:
                     # The api of file upload is used in the multiple places,
                     # so we need to check the source of the request from datasets
@@ -115,33 +111,6 @@ def decorated(*args, **kwargs):
     return interceptor
 
 
-def cloud_edition_billing_rate_limit_check(resource: str):
-    def interceptor(view):
-        @wraps(view)
-        def decorated(*args, **kwargs):
-            if resource == "knowledge":
-                knowledge_rate_limit = FeatureService.get_knowledge_rate_limit(current_user.current_tenant_id)
-                if knowledge_rate_limit.enabled:
-                    current_time = int(time.time() * 1000)
-                    key = f"rate_limit_{current_user.current_tenant_id}"
-
-                    redis_client.zadd(key, {current_time: current_time})
-
-                    redis_client.zremrangebyscore(key, 0, current_time - 60000)
-
-                    request_count = redis_client.zcard(key)
-
-                    if request_count > knowledge_rate_limit.limit:
-                        abort(
-                            403, "Sorry, you have reached the knowledge base request rate limit of your subscription."
-                        )
-            return view(*args, **kwargs)
-
-        return decorated
-
-    return interceptor
-
-
 def cloud_utm_record(view):
     @wraps(view)
     def decorated(*args, **kwargs):
diff --git a/api/controllers/service_api/wraps.py b/api/controllers/service_api/wraps.py
index 43f718306bfef2..fc4cce487691c5 100644
--- a/api/controllers/service_api/wraps.py
+++ b/api/controllers/service_api/wraps.py
@@ -1,4 +1,3 @@
-import time
 from collections.abc import Callable
 from datetime import UTC, datetime, timedelta
 from enum import Enum
@@ -14,7 +13,6 @@
 from werkzeug.exceptions import Forbidden, Unauthorized
 
 from extensions.ext_database import db
-from extensions.ext_redis import redis_client
 from libs.login import _get_user
 from models.account import Account, Tenant, TenantAccountJoin, TenantStatus
 from models.model import ApiToken, App, EndUser
@@ -141,35 +139,6 @@ def decorated(*args, **kwargs):
     return interceptor
 
 
-def cloud_edition_billing_rate_limit_check(resource: str, api_token_type: str):
-    def interceptor(view):
-        @wraps(view)
-        def decorated(*args, **kwargs):
-            api_token = validate_and_get_api_token(api_token_type)
-
-            if resource == "knowledge":
-                knowledge_rate_limit = FeatureService.get_knowledge_rate_limit(api_token.tenant_id)
-                if knowledge_rate_limit.enabled:
-                    current_time = int(time.time() * 1000)
-                    key = f"rate_limit_{api_token.tenant_id}"
-
-                    redis_client.zadd(key, {current_time: current_time})
-
-                    redis_client.zremrangebyscore(key, 0, current_time - 60000)
-
-                    request_count = redis_client.zcard(key)
-
-                    if request_count > knowledge_rate_limit.limit:
-                        raise Forbidden(
-                            "Sorry, you have reached the knowledge base request rate limit of your subscription."
-                        )
-            return view(*args, **kwargs)
-
-        return decorated
-
-    return interceptor
-
-
 def validate_dataset_token(view=None):
     def decorator(view):
         @wraps(view)
diff --git a/api/core/ops/entities/config_entity.py b/api/core/ops/entities/config_entity.py
index ef0f9c708f14b0..b484242b611d79 100644
--- a/api/core/ops/entities/config_entity.py
+++ b/api/core/ops/entities/config_entity.py
@@ -6,6 +6,7 @@
 class TracingProviderEnum(Enum):
     LANGFUSE = "langfuse"
     LANGSMITH = "langsmith"
+    OPIK = "opik"
 
 
 class BaseTracingConfig(BaseModel):
@@ -56,5 +57,36 @@ def set_value(cls, v, info: ValidationInfo):
         return v
 
 
+class OpikConfig(BaseTracingConfig):
+    """
+    Model class for Opik tracing config.
+    """
+
+    api_key: str | None = None
+    project: str | None = None
+    workspace: str | None = None
+    url: str = "https://www.comet.com/opik/api/"
+
+    @field_validator("project")
+    @classmethod
+    def project_validator(cls, v, info: ValidationInfo):
+        if v is None or v == "":
+            v = "Default Project"
+
+        return v
+
+    @field_validator("url")
+    @classmethod
+    def url_validator(cls, v, info: ValidationInfo):
+        if v is None or v == "":
+            v = "https://www.comet.com/opik/api/"
+        if not v.startswith(("https://", "http://")):
+            raise ValueError("url must start with https:// or http://")
+        if not v.endswith("/api/"):
+            raise ValueError("url should ends with /api/")
+
+        return v
+
+
 OPS_FILE_PATH = "ops_trace/"
 OPS_TRACE_FAILED_KEY = "FAILED_OPS_TRACE"
diff --git a/api/core/ops/opik_trace/__init__.py b/api/core/ops/opik_trace/__init__.py
new file mode 100644
index 00000000000000..e69de29bb2d1d6
diff --git a/api/core/ops/opik_trace/opik_trace.py b/api/core/ops/opik_trace/opik_trace.py
new file mode 100644
index 00000000000000..fabf38fbd64178
--- /dev/null
+++ b/api/core/ops/opik_trace/opik_trace.py
@@ -0,0 +1,469 @@
+import json
+import logging
+import os
+import uuid
+from datetime import datetime, timedelta
+from typing import Optional, cast
+
+from opik import Opik, Trace
+from opik.id_helpers import uuid4_to_uuid7
+
+from core.ops.base_trace_instance import BaseTraceInstance
+from core.ops.entities.config_entity import OpikConfig
+from core.ops.entities.trace_entity import (
+    BaseTraceInfo,
+    DatasetRetrievalTraceInfo,
+    GenerateNameTraceInfo,
+    MessageTraceInfo,
+    ModerationTraceInfo,
+    SuggestedQuestionTraceInfo,
+    ToolTraceInfo,
+    TraceTaskName,
+    WorkflowTraceInfo,
+)
+from extensions.ext_database import db
+from models.model import EndUser, MessageFile
+from models.workflow import WorkflowNodeExecution
+
+logger = logging.getLogger(__name__)
+
+
+def wrap_dict(key_name, data):
+    """Make sure that the input data is a dict"""
+    if not isinstance(data, dict):
+        return {key_name: data}
+
+    return data
+
+
+def wrap_metadata(metadata, **kwargs):
+    """Add common metatada to all Traces and Spans"""
+    metadata["created_from"] = "dify"
+
+    metadata.update(kwargs)
+
+    return metadata
+
+
+def prepare_opik_uuid(user_datetime: Optional[datetime], user_uuid: Optional[str]):
+    """Opik needs UUIDv7 while Dify uses UUIDv4 for identifier of most
+    messages and objects. The type-hints of BaseTraceInfo indicates that
+    objects start_time and message_id could be null which means we cannot map
+    it to a UUIDv7. Given that we have no way to identify that object
+    uniquely, generate a new random one UUIDv7 in that case.
+    """
+
+    if user_datetime is None:
+        user_datetime = datetime.now()
+
+    if user_uuid is None:
+        user_uuid = str(uuid.uuid4())
+
+    return uuid4_to_uuid7(user_datetime, user_uuid)
+
+
+class OpikDataTrace(BaseTraceInstance):
+    def __init__(
+        self,
+        opik_config: OpikConfig,
+    ):
+        super().__init__(opik_config)
+        self.opik_client = Opik(
+            project_name=opik_config.project,
+            workspace=opik_config.workspace,
+            host=opik_config.url,
+            api_key=opik_config.api_key,
+        )
+        self.project = opik_config.project
+        self.file_base_url = os.getenv("FILES_URL", "http://127.0.0.1:5001")
+
+    def trace(self, trace_info: BaseTraceInfo):
+        if isinstance(trace_info, WorkflowTraceInfo):
+            self.workflow_trace(trace_info)
+        if isinstance(trace_info, MessageTraceInfo):
+            self.message_trace(trace_info)
+        if isinstance(trace_info, ModerationTraceInfo):
+            self.moderation_trace(trace_info)
+        if isinstance(trace_info, SuggestedQuestionTraceInfo):
+            self.suggested_question_trace(trace_info)
+        if isinstance(trace_info, DatasetRetrievalTraceInfo):
+            self.dataset_retrieval_trace(trace_info)
+        if isinstance(trace_info, ToolTraceInfo):
+            self.tool_trace(trace_info)
+        if isinstance(trace_info, GenerateNameTraceInfo):
+            self.generate_name_trace(trace_info)
+
+    def workflow_trace(self, trace_info: WorkflowTraceInfo):
+        dify_trace_id = trace_info.workflow_run_id
+        opik_trace_id = prepare_opik_uuid(trace_info.start_time, dify_trace_id)
+        workflow_metadata = wrap_metadata(
+            trace_info.metadata, message_id=trace_info.message_id, workflow_app_log_id=trace_info.workflow_app_log_id
+        )
+        root_span_id = None
+
+        if trace_info.message_id:
+            dify_trace_id = trace_info.message_id
+            opik_trace_id = prepare_opik_uuid(trace_info.start_time, dify_trace_id)
+
+            trace_data = {
+                "id": opik_trace_id,
+                "name": TraceTaskName.MESSAGE_TRACE.value,
+                "start_time": trace_info.start_time,
+                "end_time": trace_info.end_time,
+                "metadata": workflow_metadata,
+                "input": wrap_dict("input", trace_info.workflow_run_inputs),
+                "output": wrap_dict("output", trace_info.workflow_run_outputs),
+                "tags": ["message", "workflow"],
+                "project_name": self.project,
+            }
+            self.add_trace(trace_data)
+
+            root_span_id = prepare_opik_uuid(trace_info.start_time, trace_info.workflow_run_id)
+            span_data = {
+                "id": root_span_id,
+                "parent_span_id": None,
+                "trace_id": opik_trace_id,
+                "name": TraceTaskName.WORKFLOW_TRACE.value,
+                "input": wrap_dict("input", trace_info.workflow_run_inputs),
+                "output": wrap_dict("output", trace_info.workflow_run_outputs),
+                "start_time": trace_info.start_time,
+                "end_time": trace_info.end_time,
+                "metadata": workflow_metadata,
+                "tags": ["workflow"],
+                "project_name": self.project,
+            }
+            self.add_span(span_data)
+        else:
+            trace_data = {
+                "id": opik_trace_id,
+                "name": TraceTaskName.MESSAGE_TRACE.value,
+                "start_time": trace_info.start_time,
+                "end_time": trace_info.end_time,
+                "metadata": workflow_metadata,
+                "input": wrap_dict("input", trace_info.workflow_run_inputs),
+                "output": wrap_dict("output", trace_info.workflow_run_outputs),
+                "tags": ["workflow"],
+                "project_name": self.project,
+            }
+            self.add_trace(trace_data)
+
+        # through workflow_run_id get all_nodes_execution
+        workflow_nodes_execution_id_records = (
+            db.session.query(WorkflowNodeExecution.id)
+            .filter(WorkflowNodeExecution.workflow_run_id == trace_info.workflow_run_id)
+            .all()
+        )
+
+        for node_execution_id_record in workflow_nodes_execution_id_records:
+            node_execution = (
+                db.session.query(
+                    WorkflowNodeExecution.id,
+                    WorkflowNodeExecution.tenant_id,
+                    WorkflowNodeExecution.app_id,
+                    WorkflowNodeExecution.title,
+                    WorkflowNodeExecution.node_type,
+                    WorkflowNodeExecution.status,
+                    WorkflowNodeExecution.inputs,
+                    WorkflowNodeExecution.outputs,
+                    WorkflowNodeExecution.created_at,
+                    WorkflowNodeExecution.elapsed_time,
+                    WorkflowNodeExecution.process_data,
+                    WorkflowNodeExecution.execution_metadata,
+                )
+                .filter(WorkflowNodeExecution.id == node_execution_id_record.id)
+                .first()
+            )
+
+            if not node_execution:
+                continue
+
+            node_execution_id = node_execution.id
+            tenant_id = node_execution.tenant_id
+            app_id = node_execution.app_id
+            node_name = node_execution.title
+            node_type = node_execution.node_type
+            status = node_execution.status
+            if node_type == "llm":
+                inputs = (
+                    json.loads(node_execution.process_data).get("prompts", {}) if node_execution.process_data else {}
+                )
+            else:
+                inputs = json.loads(node_execution.inputs) if node_execution.inputs else {}
+            outputs = json.loads(node_execution.outputs) if node_execution.outputs else {}
+            created_at = node_execution.created_at or datetime.now()
+            elapsed_time = node_execution.elapsed_time
+            finished_at = created_at + timedelta(seconds=elapsed_time)
+
+            execution_metadata = (
+                json.loads(node_execution.execution_metadata) if node_execution.execution_metadata else {}
+            )
+            metadata = execution_metadata.copy()
+            metadata.update(
+                {
+                    "workflow_run_id": trace_info.workflow_run_id,
+                    "node_execution_id": node_execution_id,
+                    "tenant_id": tenant_id,
+                    "app_id": app_id,
+                    "app_name": node_name,
+                    "node_type": node_type,
+                    "status": status,
+                }
+            )
+
+            process_data = json.loads(node_execution.process_data) if node_execution.process_data else {}
+
+            provider = None
+            model = None
+            total_tokens = 0
+            completion_tokens = 0
+            prompt_tokens = 0
+
+            if process_data and process_data.get("model_mode") == "chat":
+                run_type = "llm"
+                provider = process_data.get("model_provider", None)
+                model = process_data.get("model_name", "")
+                metadata.update(
+                    {
+                        "ls_provider": provider,
+                        "ls_model_name": model,
+                    }
+                )
+
+                try:
+                    if outputs.get("usage"):
+                        total_tokens = outputs["usage"].get("total_tokens", 0)
+                        prompt_tokens = outputs["usage"].get("prompt_tokens", 0)
+                        completion_tokens = outputs["usage"].get("completion_tokens", 0)
+                except Exception:
+                    logger.error("Failed to extract usage", exc_info=True)
+
+            else:
+                run_type = "tool"
+
+            parent_span_id = trace_info.workflow_app_log_id or trace_info.workflow_run_id
+
+            if not total_tokens:
+                total_tokens = execution_metadata.get("total_tokens", 0)
+
+            span_data = {
+                "trace_id": opik_trace_id,
+                "id": prepare_opik_uuid(created_at, node_execution_id),
+                "parent_span_id": prepare_opik_uuid(trace_info.start_time, parent_span_id),
+                "name": node_type,
+                "type": run_type,
+                "start_time": created_at,
+                "end_time": finished_at,
+                "metadata": wrap_metadata(metadata),
+                "input": wrap_dict("input", inputs),
+                "output": wrap_dict("output", outputs),
+                "tags": ["node_execution"],
+                "project_name": self.project,
+                "usage": {
+                    "total_tokens": total_tokens,
+                    "completion_tokens": completion_tokens,
+                    "prompt_tokens": prompt_tokens,
+                },
+                "model": model,
+                "provider": provider,
+            }
+
+            self.add_span(span_data)
+
+    def message_trace(self, trace_info: MessageTraceInfo):
+        # get message file data
+        file_list = cast(list[str], trace_info.file_list) or []
+        message_file_data: Optional[MessageFile] = trace_info.message_file_data
+
+        if message_file_data is not None:
+            file_url = f"{self.file_base_url}/{message_file_data.url}" if message_file_data else ""
+            file_list.append(file_url)
+
+        message_data = trace_info.message_data
+        if message_data is None:
+            return
+
+        metadata = trace_info.metadata
+        message_id = trace_info.message_id
+
+        user_id = message_data.from_account_id
+        metadata["user_id"] = user_id
+        metadata["file_list"] = file_list
+
+        if message_data.from_end_user_id:
+            end_user_data: Optional[EndUser] = (
+                db.session.query(EndUser).filter(EndUser.id == message_data.from_end_user_id).first()
+            )
+            if end_user_data is not None:
+                end_user_id = end_user_data.session_id
+                metadata["end_user_id"] = end_user_id
+
+        trace_data = {
+            "id": prepare_opik_uuid(trace_info.start_time, message_id),
+            "name": TraceTaskName.MESSAGE_TRACE.value,
+            "start_time": trace_info.start_time,
+            "end_time": trace_info.end_time,
+            "metadata": wrap_metadata(metadata),
+            "input": trace_info.inputs,
+            "output": message_data.answer,
+            "tags": ["message", str(trace_info.conversation_mode)],
+            "project_name": self.project,
+        }
+        trace = self.add_trace(trace_data)
+
+        span_data = {
+            "trace_id": trace.id,
+            "name": "llm",
+            "type": "llm",
+            "start_time": trace_info.start_time,
+            "end_time": trace_info.end_time,
+            "metadata": wrap_metadata(metadata),
+            "input": {"input": trace_info.inputs},
+            "output": {"output": message_data.answer},
+            "tags": ["llm", str(trace_info.conversation_mode)],
+            "usage": {
+                "completion_tokens": trace_info.answer_tokens,
+                "prompt_tokens": trace_info.message_tokens,
+                "total_tokens": trace_info.total_tokens,
+            },
+            "project_name": self.project,
+        }
+        self.add_span(span_data)
+
+    def moderation_trace(self, trace_info: ModerationTraceInfo):
+        if trace_info.message_data is None:
+            return
+
+        start_time = trace_info.start_time or trace_info.message_data.created_at
+
+        span_data = {
+            "trace_id": prepare_opik_uuid(start_time, trace_info.message_id),
+            "name": TraceTaskName.MODERATION_TRACE.value,
+            "type": "tool",
+            "start_time": start_time,
+            "end_time": trace_info.end_time or trace_info.message_data.updated_at,
+            "metadata": wrap_metadata(trace_info.metadata),
+            "input": wrap_dict("input", trace_info.inputs),
+            "output": {
+                "action": trace_info.action,
+                "flagged": trace_info.flagged,
+                "preset_response": trace_info.preset_response,
+                "inputs": trace_info.inputs,
+            },
+            "tags": ["moderation"],
+        }
+
+        self.add_span(span_data)
+
+    def suggested_question_trace(self, trace_info: SuggestedQuestionTraceInfo):
+        message_data = trace_info.message_data
+        if message_data is None:
+            return
+
+        start_time = trace_info.start_time or message_data.created_at
+
+        span_data = {
+            "trace_id": prepare_opik_uuid(start_time, trace_info.message_id),
+            "name": TraceTaskName.SUGGESTED_QUESTION_TRACE.value,
+            "type": "tool",
+            "start_time": start_time,
+            "end_time": trace_info.end_time or message_data.updated_at,
+            "metadata": wrap_metadata(trace_info.metadata),
+            "input": wrap_dict("input", trace_info.inputs),
+            "output": wrap_dict("output", trace_info.suggested_question),
+            "tags": ["suggested_question"],
+        }
+
+        self.add_span(span_data)
+
+    def dataset_retrieval_trace(self, trace_info: DatasetRetrievalTraceInfo):
+        if trace_info.message_data is None:
+            return
+
+        start_time = trace_info.start_time or trace_info.message_data.created_at
+
+        span_data = {
+            "trace_id": prepare_opik_uuid(start_time, trace_info.message_id),
+            "name": TraceTaskName.DATASET_RETRIEVAL_TRACE.value,
+            "type": "tool",
+            "start_time": start_time,
+            "end_time": trace_info.end_time or trace_info.message_data.updated_at,
+            "metadata": wrap_metadata(trace_info.metadata),
+            "input": wrap_dict("input", trace_info.inputs),
+            "output": {"documents": trace_info.documents},
+            "tags": ["dataset_retrieval"],
+        }
+
+        self.add_span(span_data)
+
+    def tool_trace(self, trace_info: ToolTraceInfo):
+        span_data = {
+            "trace_id": prepare_opik_uuid(trace_info.start_time, trace_info.message_id),
+            "name": trace_info.tool_name,
+            "type": "tool",
+            "start_time": trace_info.start_time,
+            "end_time": trace_info.end_time,
+            "metadata": wrap_metadata(trace_info.metadata),
+            "input": wrap_dict("input", trace_info.tool_inputs),
+            "output": wrap_dict("output", trace_info.tool_outputs),
+            "tags": ["tool", trace_info.tool_name],
+        }
+
+        self.add_span(span_data)
+
+    def generate_name_trace(self, trace_info: GenerateNameTraceInfo):
+        trace_data = {
+            "id": prepare_opik_uuid(trace_info.start_time, trace_info.message_id),
+            "name": TraceTaskName.GENERATE_NAME_TRACE.value,
+            "start_time": trace_info.start_time,
+            "end_time": trace_info.end_time,
+            "metadata": wrap_metadata(trace_info.metadata),
+            "input": trace_info.inputs,
+            "output": trace_info.outputs,
+            "tags": ["generate_name"],
+            "project_name": self.project,
+        }
+
+        trace = self.add_trace(trace_data)
+
+        span_data = {
+            "trace_id": trace.id,
+            "name": TraceTaskName.GENERATE_NAME_TRACE.value,
+            "start_time": trace_info.start_time,
+            "end_time": trace_info.end_time,
+            "metadata": wrap_metadata(trace_info.metadata),
+            "input": wrap_dict("input", trace_info.inputs),
+            "output": wrap_dict("output", trace_info.outputs),
+            "tags": ["generate_name"],
+        }
+
+        self.add_span(span_data)
+
+    def add_trace(self, opik_trace_data: dict) -> Trace:
+        try:
+            trace = self.opik_client.trace(**opik_trace_data)
+            logger.debug("Opik Trace created successfully")
+            return trace
+        except Exception as e:
+            raise ValueError(f"Opik Failed to create trace: {str(e)}")
+
+    def add_span(self, opik_span_data: dict):
+        try:
+            self.opik_client.span(**opik_span_data)
+            logger.debug("Opik Span created successfully")
+        except Exception as e:
+            raise ValueError(f"Opik Failed to create span: {str(e)}")
+
+    def api_check(self):
+        try:
+            self.opik_client.auth_check()
+            return True
+        except Exception as e:
+            logger.info(f"Opik API check failed: {str(e)}", exc_info=True)
+            raise ValueError(f"Opik API check failed: {str(e)}")
+
+    def get_project_url(self):
+        try:
+            return self.opik_client.get_project_url(project_name=self.project)
+        except Exception as e:
+            logger.info(f"Opik get run url failed: {str(e)}", exc_info=True)
+            raise ValueError(f"Opik get run url failed: {str(e)}")
diff --git a/api/core/ops/ops_trace_manager.py b/api/core/ops/ops_trace_manager.py
index 691cb8d400964c..c153e3f9dd6d47 100644
--- a/api/core/ops/ops_trace_manager.py
+++ b/api/core/ops/ops_trace_manager.py
@@ -17,6 +17,7 @@
     OPS_FILE_PATH,
     LangfuseConfig,
     LangSmithConfig,
+    OpikConfig,
     TracingProviderEnum,
 )
 from core.ops.entities.trace_entity import (
@@ -32,6 +33,7 @@
 )
 from core.ops.langfuse_trace.langfuse_trace import LangFuseDataTrace
 from core.ops.langsmith_trace.langsmith_trace import LangSmithDataTrace
+from core.ops.opik_trace.opik_trace import OpikDataTrace
 from core.ops.utils import get_message_data
 from extensions.ext_database import db
 from extensions.ext_storage import storage
@@ -52,6 +54,12 @@
         "other_keys": ["project", "endpoint"],
         "trace_instance": LangSmithDataTrace,
     },
+    TracingProviderEnum.OPIK.value: {
+        "config_class": OpikConfig,
+        "secret_keys": ["api_key"],
+        "other_keys": ["project", "url", "workspace"],
+        "trace_instance": OpikDataTrace,
+    },
 }
 
 
diff --git a/api/core/tools/utils/parser.py b/api/core/tools/utils/parser.py
index 30e4fdcf06dbc4..9d88d6d6ef5ce3 100644
--- a/api/core/tools/utils/parser.py
+++ b/api/core/tools/utils/parser.py
@@ -5,6 +5,7 @@
 from json.decoder import JSONDecodeError
 from typing import Optional
 
+from flask import request
 from requests import get
 from yaml import YAMLError, safe_load  # type: ignore
 
@@ -29,6 +30,10 @@ def parse_openapi_to_tool_bundle(
             raise ToolProviderNotFoundError("No server found in the openapi yaml.")
 
         server_url = openapi["servers"][0]["url"]
+        request_env = request.headers.get("X-Request-Env")
+        if request_env:
+            matched_servers = [server["url"] for server in openapi["servers"] if server["env"] == request_env]
+            server_url = matched_servers[0] if matched_servers else server_url
 
         # list all interfaces
         interfaces = []
diff --git a/api/core/workflow/nodes/answer/base_stream_processor.py b/api/core/workflow/nodes/answer/base_stream_processor.py
index f22ea078fb87eb..4759356ae124a4 100644
--- a/api/core/workflow/nodes/answer/base_stream_processor.py
+++ b/api/core/workflow/nodes/answer/base_stream_processor.py
@@ -1,6 +1,7 @@
 import logging
 from abc import ABC, abstractmethod
 from collections.abc import Generator
+from typing import Optional
 
 from core.workflow.entities.variable_pool import VariablePool
 from core.workflow.graph_engine.entities.event import GraphEngineEvent, NodeRunExceptionEvent, NodeRunSucceededEvent
@@ -48,25 +49,35 @@ def _remove_unreachable_nodes(self, event: NodeRunSucceededEvent | NodeRunExcept
                     # we remove the node maybe shortcut the answer node, so comment this code for now
                     # there is not effect on the answer node and the workflow, when we have a better solution
                     # we can open this code. Issues: #11542 #9560 #10638 #10564
-                    ids = self._fetch_node_ids_in_reachable_branch(edge.target_node_id)
-                    if "answer" in ids:
-                        continue
-                    else:
-                        reachable_node_ids.extend(ids)
+                    # ids = self._fetch_node_ids_in_reachable_branch(edge.target_node_id)
+                    # if "answer" in ids:
+                    #     continue
+                    # else:
+                    #     reachable_node_ids.extend(ids)
+
+                    # The branch_identify parameter is added to ensure that
+                    # only nodes in the correct logical branch are included.
+                    ids = self._fetch_node_ids_in_reachable_branch(edge.target_node_id, run_result.edge_source_handle)
+                    reachable_node_ids.extend(ids)
                 else:
                     unreachable_first_node_ids.append(edge.target_node_id)
 
             for node_id in unreachable_first_node_ids:
                 self._remove_node_ids_in_unreachable_branch(node_id, reachable_node_ids)
 
-    def _fetch_node_ids_in_reachable_branch(self, node_id: str) -> list[str]:
+    def _fetch_node_ids_in_reachable_branch(self, node_id: str, branch_identify: Optional[str] = None) -> list[str]:
         node_ids = []
         for edge in self.graph.edge_mapping.get(node_id, []):
             if edge.target_node_id == self.graph.root_node_id:
                 continue
 
+            # Only follow edges that match the branch_identify or have no run_condition
+            if edge.run_condition and edge.run_condition.branch_identify:
+                if not branch_identify or edge.run_condition.branch_identify != branch_identify:
+                    continue
+
             node_ids.append(edge.target_node_id)
-            node_ids.extend(self._fetch_node_ids_in_reachable_branch(edge.target_node_id))
+            node_ids.extend(self._fetch_node_ids_in_reachable_branch(edge.target_node_id, branch_identify))
         return node_ids
 
     def _remove_node_ids_in_unreachable_branch(self, node_id: str, reachable_node_ids: list[str]) -> None:
diff --git a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
index be82ad2a8290ab..0f239af51ae79c 100644
--- a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
+++ b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
@@ -1,5 +1,4 @@
 import logging
-import time
 from collections.abc import Mapping, Sequence
 from typing import Any, cast
 
@@ -20,10 +19,8 @@
 from core.workflow.nodes.base import BaseNode
 from core.workflow.nodes.enums import NodeType
 from extensions.ext_database import db
-from extensions.ext_redis import redis_client
 from models.dataset import Dataset, Document
 from models.workflow import WorkflowNodeExecutionStatus
-from services.feature_service import FeatureService
 
 from .entities import KnowledgeRetrievalNodeData
 from .exc import (
@@ -64,23 +61,6 @@ def _run(self) -> NodeRunResult:
             return NodeRunResult(
                 status=WorkflowNodeExecutionStatus.FAILED, inputs=variables, error="Query is required."
             )
-        # check rate limit
-        if self.tenant_id:
-            knowledge_rate_limit = FeatureService.get_knowledge_rate_limit(self.tenant_id)
-            if knowledge_rate_limit.enabled:
-                current_time = int(time.time() * 1000)
-                key = f"rate_limit_{self.tenant_id}"
-                redis_client.zadd(key, {current_time: current_time})
-                redis_client.zremrangebyscore(key, 0, current_time - 60000)
-                request_count = redis_client.zcard(key)
-                if request_count > knowledge_rate_limit.limit:
-                    return NodeRunResult(
-                        status=WorkflowNodeExecutionStatus.FAILED,
-                        inputs=variables,
-                        error="Sorry, you have reached the knowledge base request rate limit of your subscription.",
-                        error_type="RateLimitExceeded",
-                    )
-
         # retrieve knowledge
         try:
             results = self._fetch_dataset_retriever(node_data=self.node_data, query=query)
diff --git a/api/core/workflow/nodes/variable_assigner/v2/node.py b/api/core/workflow/nodes/variable_assigner/v2/node.py
index 0c4aae827c0a0f..afa5656f46e692 100644
--- a/api/core/workflow/nodes/variable_assigner/v2/node.py
+++ b/api/core/workflow/nodes/variable_assigner/v2/node.py
@@ -1,4 +1,5 @@
 import json
+from collections.abc import Sequence
 from typing import Any, cast
 
 from core.variables import SegmentType, Variable
@@ -31,7 +32,7 @@ def _run(self) -> NodeRunResult:
         inputs = self.node_data.model_dump()
         process_data: dict[str, Any] = {}
         # NOTE: This node has no outputs
-        updated_variables: list[Variable] = []
+        updated_variable_selectors: list[Sequence[str]] = []
 
         try:
             for item in self.node_data.items:
@@ -98,7 +99,8 @@ def _run(self) -> NodeRunResult:
                     value=item.value,
                 )
                 variable = variable.model_copy(update={"value": updated_value})
-                updated_variables.append(variable)
+                self.graph_runtime_state.variable_pool.add(variable.selector, variable)
+                updated_variable_selectors.append(variable.selector)
         except VariableOperatorNodeError as e:
             return NodeRunResult(
                 status=WorkflowNodeExecutionStatus.FAILED,
@@ -107,9 +109,15 @@ def _run(self) -> NodeRunResult:
                 error=str(e),
             )
 
+        # The `updated_variable_selectors` is a list contains list[str] which not hashable,
+        # remove the duplicated items first.
+        updated_variable_selectors = list(set(map(tuple, updated_variable_selectors)))
+
         # Update variables
-        for variable in updated_variables:
-            self.graph_runtime_state.variable_pool.add(variable.selector, variable)
+        for selector in updated_variable_selectors:
+            variable = self.graph_runtime_state.variable_pool.get(selector)
+            if not isinstance(variable, Variable):
+                raise VariableNotFoundError(variable_selector=selector)
             process_data[variable.name] = variable.value
 
             if variable.selector[0] == CONVERSATION_VARIABLE_NODE_ID:
diff --git a/api/poetry.lock b/api/poetry.lock
index fe80545e7ca682..7feb942a7f69d0 100644
--- a/api/poetry.lock
+++ b/api/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.8.4 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.8.5 and should not be changed by hand.
 
 [[package]]
 name = "aiofiles"
@@ -4693,6 +4693,134 @@ requests-toolbelt = ">=1.0.0,<2.0.0"
 [package.extras]
 langsmith-pyo3 = ["langsmith-pyo3 (>=0.1.0rc2,<0.2.0)"]
 
+[[package]]
+name = "levenshtein"
+version = "0.26.1"
+description = "Python extension for computing string edit distances and similarities."
+optional = false
+python-versions = ">=3.9"
+files = [
+    {file = "levenshtein-0.26.1-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:8dc4a4aecad538d944a1264c12769c99e3c0bf8e741fc5e454cc954913befb2e"},
+    {file = "levenshtein-0.26.1-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:ec108f368c12b25787c8b1a4537a1452bc53861c3ee4abc810cc74098278edcd"},
+    {file = "levenshtein-0.26.1-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:69229d651c97ed5b55b7ce92481ed00635cdbb80fbfb282a22636e6945dc52d5"},
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+[package.extras]
+extra-proxy = ["azure-identity (>=1.15.0,<2.0.0)", "azure-keyvault-secrets (>=4.8.0,<5.0.0)", "google-cloud-kms (>=2.21.3,<3.0.0)", "prisma (==0.11.0)", "resend (>=0.8.0,<0.9.0)"]
+proxy = ["PyJWT (>=2.8.0,<3.0.0)", "apscheduler (>=3.10.4,<4.0.0)", "backoff", "cryptography (>=42.0.5,<43.0.0)", "fastapi (>=0.111.0,<0.112.0)", "fastapi-sso (>=0.10.0,<0.11.0)", "gunicorn (>=22.0.0,<23.0.0)", "orjson (>=3.9.7,<4.0.0)", "pynacl (>=1.5.0,<2.0.0)", "python-multipart (>=0.0.9,<0.0.10)", "pyyaml (>=6.0.1,<7.0.0)", "rq", "uvicorn (>=0.22.0,<0.23.0)"]
+
 [[package]]
 name = "llvmlite"
 version = "0.43.0"
@@ -6265,6 +6393,31 @@ files = [
     {file = "opentelemetry_util_http-0.50b0.tar.gz", hash = "sha256:dc4606027e1bc02aabb9533cc330dd43f874fca492e4175c31d7154f341754af"},
 ]
 
+[[package]]
+name = "opik"
+version = "1.3.4"
+description = "Comet tool for logging and evaluating LLM traces"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "opik-1.3.4-py3-none-any.whl", hash = "sha256:c5e10a9f1fb18188471cce2ae8b841e8b187d04ee3b1aed01c643102bae588fb"},
+    {file = "opik-1.3.4.tar.gz", hash = "sha256:6013d3af4aea61f38b9e7121aa5d8cf4305a5ed3807b3f43d9ab91602b2a5785"},
+]
+
+[package.dependencies]
+click = "*"
+httpx = "<0.28.0"
+levenshtein = "<1.0.0"
+litellm = "*"
+openai = "<2.0.0"
+pydantic = ">=2.0.0,<3.0.0"
+pydantic-settings = ">=2.0.0,<3.0.0"
+pytest = "*"
+rich = "*"
+tenacity = "*"
+tqdm = "*"
+uuid6 = "*"
+
 [[package]]
 name = "oracledb"
 version = "2.2.1"
@@ -10230,6 +10383,17 @@ h2 = ["h2 (>=4,<5)"]
 socks = ["pysocks (>=1.5.6,!=1.5.7,<2.0)"]
 zstd = ["zstandard (>=0.18.0)"]
 
+[[package]]
+name = "uuid6"
+version = "2024.7.10"
+description = "New time-based UUID formats which are suited for use as a database key"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "uuid6-2024.7.10-py3-none-any.whl", hash = "sha256:93432c00ba403751f722829ad21759ff9db051dea140bf81493271e8e4dd18b7"},
+    {file = "uuid6-2024.7.10.tar.gz", hash = "sha256:2d29d7f63f593caaeea0e0d0dd0ad8129c9c663b29e19bdf882e864bedf18fb0"},
+]
+
 [[package]]
 name = "uvicorn"
 version = "0.34.0"
@@ -11220,4 +11384,4 @@ cffi = ["cffi (>=1.11)"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.11,<3.13"
-content-hash = "907718f7ca775ad226c1f668f4bb6c6dbfa6cacc556fce43a8ad0b6f3c35095a"
+content-hash = "3bb0ce64c87712cf105c75105a0ca75c0523d6b27001ff6a623bb2a0d1343003"
diff --git a/api/pyproject.toml b/api/pyproject.toml
index f8c6f599d182b0..6e2ba4cdb48325 100644
--- a/api/pyproject.toml
+++ b/api/pyproject.toml
@@ -59,6 +59,7 @@ numpy = "~1.26.4"
 oci = "~2.135.1"
 openai = "~1.52.0"
 openpyxl = "~3.1.5"
+opik = "~1.3.4"
 pandas = { version = "~2.2.2", extras = ["performance", "excel"] }
 pandas-stubs = "~2.2.3.241009"
 psycogreen = "~1.0.2"
diff --git a/api/services/app_dsl_service.py b/api/services/app_dsl_service.py
index f81ce8393e3a8a..15119247f887f0 100644
--- a/api/services/app_dsl_service.py
+++ b/api/services/app_dsl_service.py
@@ -1,7 +1,7 @@
 import logging
 import uuid
 from enum import StrEnum
-from typing import Optional, cast
+from typing import Optional
 from urllib.parse import urlparse
 from uuid import uuid4
 
@@ -139,15 +139,6 @@ def import_app(
                         status=ImportStatus.FAILED,
                         error="Empty content from url",
                     )
-
-                try:
-                    content = cast(bytes, content).decode("utf-8")
-                except UnicodeDecodeError as e:
-                    return Import(
-                        id=import_id,
-                        status=ImportStatus.FAILED,
-                        error=f"Error decoding content: {e}",
-                    )
             except Exception as e:
                 return Import(
                     id=import_id,
diff --git a/api/services/audio_service.py b/api/services/audio_service.py
index f4178a69a4aada..294dfe4c8c3ceb 100644
--- a/api/services/audio_service.py
+++ b/api/services/audio_service.py
@@ -82,7 +82,7 @@ def transcript_tts(
         from app import app
         from extensions.ext_database import db
 
-        def invoke_tts(text_content: str, app_model, voice: Optional[str] = None):
+        def invoke_tts(text_content: str, app_model: App, voice: Optional[str] = None):
             with app.app_context():
                 if app_model.mode in {AppMode.ADVANCED_CHAT.value, AppMode.WORKFLOW.value}:
                     workflow = app_model.workflow
@@ -95,6 +95,8 @@ def invoke_tts(text_content: str, app_model, voice: Optional[str] = None):
 
                     voice = features_dict["text_to_speech"].get("voice") if voice is None else voice
                 else:
+                    if app_model.app_model_config is None:
+                        raise ValueError("AppModelConfig not found")
                     text_to_speech_dict = app_model.app_model_config.text_to_speech_dict
 
                     if not text_to_speech_dict.get("enabled"):
diff --git a/api/services/billing_service.py b/api/services/billing_service.py
index 9d9dd8a368e7c3..0d50a2aa8c34ff 100644
--- a/api/services/billing_service.py
+++ b/api/services/billing_service.py
@@ -19,14 +19,6 @@ def get_info(cls, tenant_id: str):
         billing_info = cls._send_request("GET", "/subscription/info", params=params)
         return billing_info
 
-    @classmethod
-    def get_knowledge_rate_limit(cls, tenant_id: str):
-        params = {"tenant_id": tenant_id}
-
-        knowledge_rate_limit = cls._send_request("GET", "/subscription/knowledge-rate-limit", params=params)
-
-        return knowledge_rate_limit.get("limit", 10)
-
     @classmethod
     def get_subscription(cls, plan: str, interval: str, prefilled_email: str = "", tenant_id: str = ""):
         params = {"plan": plan, "interval": interval, "prefilled_email": prefilled_email, "tenant_id": tenant_id}
diff --git a/api/services/feature_service.py b/api/services/feature_service.py
index 52cfe4f2cb7e53..b9261d19d7930e 100644
--- a/api/services/feature_service.py
+++ b/api/services/feature_service.py
@@ -41,7 +41,6 @@ class FeatureModel(BaseModel):
     members: LimitationModel = LimitationModel(size=0, limit=1)
     apps: LimitationModel = LimitationModel(size=0, limit=10)
     vector_space: LimitationModel = LimitationModel(size=0, limit=5)
-    knowledge_rate_limit: int = 10
     annotation_quota_limit: LimitationModel = LimitationModel(size=0, limit=10)
     documents_upload_quota: LimitationModel = LimitationModel(size=0, limit=50)
     docs_processing: str = "standard"
@@ -53,11 +52,6 @@ class FeatureModel(BaseModel):
     model_config = ConfigDict(protected_namespaces=())
 
 
-class KnowledgeRateLimitModel(BaseModel):
-    enabled: bool = False
-    limit: int = 10
-
-
 class SystemFeatureModel(BaseModel):
     sso_enforced_for_signin: bool = False
     sso_enforced_for_signin_protocol: str = ""
@@ -85,14 +79,6 @@ def get_features(cls, tenant_id: str) -> FeatureModel:
 
         return features
 
-    @classmethod
-    def get_knowledge_rate_limit(cls, tenant_id: str):
-        knowledge_rate_limit = KnowledgeRateLimitModel()
-        if dify_config.BILLING_ENABLED and tenant_id:
-            knowledge_rate_limit.enabled = True
-            knowledge_rate_limit.limit = BillingService.get_knowledge_rate_limit(tenant_id)
-        return knowledge_rate_limit
-
     @classmethod
     def get_system_features(cls) -> SystemFeatureModel:
         system_features = SystemFeatureModel()
@@ -158,9 +144,6 @@ def _fulfill_params_from_billing_api(cls, features: FeatureModel, tenant_id: str
         if "model_load_balancing_enabled" in billing_info:
             features.model_load_balancing_enabled = billing_info["model_load_balancing_enabled"]
 
-        if "knowledge_rate_limit" in billing_info:
-            features.knowledge_rate_limit = billing_info["knowledge_rate_limit"]["limit"]
-
     @classmethod
     def _fulfill_params_from_enterprise(cls, features):
         enterprise_info = EnterpriseService.get_info()
diff --git a/api/services/ops_service.py b/api/services/ops_service.py
index fc1e08518b1945..78340d2bcc2cee 100644
--- a/api/services/ops_service.py
+++ b/api/services/ops_service.py
@@ -59,6 +59,15 @@ def get_tracing_app_config(cls, app_id: str, tracing_provider: str):
             except Exception:
                 new_decrypt_tracing_config.update({"project_url": "https://smith.langchain.com/"})
 
+        if tracing_provider == "opik" and (
+            "project_url" not in decrypt_tracing_config or not decrypt_tracing_config.get("project_url")
+        ):
+            try:
+                project_url = OpsTraceManager.get_trace_config_project_url(decrypt_tracing_config, tracing_provider)
+                new_decrypt_tracing_config.update({"project_url": project_url})
+            except Exception:
+                new_decrypt_tracing_config.update({"project_url": "https://www.comet.com/opik/"})
+
         trace_config_data.tracing_config = new_decrypt_tracing_config
         return trace_config_data.to_dict()
 
@@ -92,7 +101,7 @@ def create_tracing_app_config(cls, app_id: str, tracing_provider: str, tracing_c
         if tracing_provider == "langfuse":
             project_key = OpsTraceManager.get_trace_config_project_key(tracing_config, tracing_provider)
             project_url = "{host}/project/{key}".format(host=tracing_config.get("host"), key=project_key)
-        elif tracing_provider == "langsmith":
+        elif tracing_provider in ("langsmith", "opik"):
             project_url = OpsTraceManager.get_trace_config_project_url(tracing_config, tracing_provider)
         else:
             project_url = None
diff --git a/docker-legacy/docker-compose.yaml b/docker-legacy/docker-compose.yaml
index c8bf382bcd4f0f..6e4c8a748ea48b 100644
--- a/docker-legacy/docker-compose.yaml
+++ b/docker-legacy/docker-compose.yaml
@@ -2,7 +2,7 @@ version: '3'
 services:
   # API service
   api:
-    image: langgenius/dify-api:0.15.0
+    image: langgenius/dify-api:0.15.1
     restart: always
     environment:
       # Startup mode, 'api' starts the API server.
@@ -227,7 +227,7 @@ services:
   # worker service
   # The Celery worker for processing the queue.
   worker:
-    image: langgenius/dify-api:0.15.0
+    image: langgenius/dify-api:0.15.1
     restart: always
     environment:
       CONSOLE_WEB_URL: ''
@@ -397,7 +397,7 @@ services:
 
   # Frontend web application.
   web:
-    image: langgenius/dify-web:0.15.0
+    image: langgenius/dify-web:0.15.1
     restart: always
     environment:
       # The base URL of console application api server, refers to the Console base URL of WEB service if console domain is
diff --git a/docker/docker-compose-template.yaml b/docker/docker-compose-template.yaml
index aec2d7da3745de..c2984fe868f24e 100644
--- a/docker/docker-compose-template.yaml
+++ b/docker/docker-compose-template.yaml
@@ -2,7 +2,7 @@ x-shared-env: &shared-api-worker-env
 services:
   # API service
   api:
-    image: langgenius/dify-api:0.15.0
+    image: langgenius/dify-api:0.15.1
     restart: always
     environment:
       # Use the shared environment variables.
@@ -25,7 +25,7 @@ services:
   # worker service
   # The Celery worker for processing the queue.
   worker:
-    image: langgenius/dify-api:0.15.0
+    image: langgenius/dify-api:0.15.1
     restart: always
     environment:
       # Use the shared environment variables.
@@ -47,7 +47,7 @@ services:
 
   # Frontend web application.
   web:
-    image: langgenius/dify-web:0.15.0
+    image: langgenius/dify-web:0.15.1
     restart: always
     environment:
       CONSOLE_API_URL: ${CONSOLE_API_URL:-}
diff --git a/docker/docker-compose.yaml b/docker/docker-compose.yaml
index 4692037b44348f..21e72a4cd6e7bb 100644
--- a/docker/docker-compose.yaml
+++ b/docker/docker-compose.yaml
@@ -393,7 +393,7 @@ x-shared-env: &shared-api-worker-env
 services:
   # API service
   api:
-    image: langgenius/dify-api:0.15.0
+    image: langgenius/dify-api:0.15.1
     restart: always
     environment:
       # Use the shared environment variables.
@@ -416,7 +416,7 @@ services:
   # worker service
   # The Celery worker for processing the queue.
   worker:
-    image: langgenius/dify-api:0.15.0
+    image: langgenius/dify-api:0.15.1
     restart: always
     environment:
       # Use the shared environment variables.
@@ -438,7 +438,7 @@ services:
 
   # Frontend web application.
   web:
-    image: langgenius/dify-web:0.15.0
+    image: langgenius/dify-web:0.15.1
     restart: always
     environment:
       CONSOLE_API_URL: ${CONSOLE_API_URL:-}
diff --git a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config-popup.tsx b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config-popup.tsx
index 8e3d8f9ec6583f..17f46c258d4ede 100644
--- a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config-popup.tsx
+++ b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config-popup.tsx
@@ -5,7 +5,7 @@ import { useTranslation } from 'react-i18next'
 import { useBoolean } from 'ahooks'
 import TracingIcon from './tracing-icon'
 import ProviderPanel from './provider-panel'
-import type { LangFuseConfig, LangSmithConfig } from './type'
+import type { LangFuseConfig, LangSmithConfig, OpikConfig } from './type'
 import { TracingProvider } from './type'
 import ProviderConfigModal from './provider-config-modal'
 import Indicator from '@/app/components/header/indicator'
@@ -23,7 +23,8 @@ export type PopupProps = {
   onChooseProvider: (provider: TracingProvider) => void
   langSmithConfig: LangSmithConfig | null
   langFuseConfig: LangFuseConfig | null
-  onConfigUpdated: (provider: TracingProvider, payload: LangSmithConfig | LangFuseConfig) => void
+  opikConfig: OpikConfig | null
+  onConfigUpdated: (provider: TracingProvider, payload: LangSmithConfig | LangFuseConfig | OpikConfig) => void
   onConfigRemoved: (provider: TracingProvider) => void
 }
 
@@ -36,6 +37,7 @@ const ConfigPopup: FC<PopupProps> = ({
   onChooseProvider,
   langSmithConfig,
   langFuseConfig,
+  opikConfig,
   onConfigUpdated,
   onConfigRemoved,
 }) => {
@@ -59,7 +61,7 @@ const ConfigPopup: FC<PopupProps> = ({
     }
   }, [onChooseProvider])
 
-  const handleConfigUpdated = useCallback((payload: LangSmithConfig | LangFuseConfig) => {
+  const handleConfigUpdated = useCallback((payload: LangSmithConfig | LangFuseConfig | OpikConfig) => {
     onConfigUpdated(currentProvider!, payload)
     hideConfigModal()
   }, [currentProvider, hideConfigModal, onConfigUpdated])
@@ -69,8 +71,8 @@ const ConfigPopup: FC<PopupProps> = ({
     hideConfigModal()
   }, [currentProvider, hideConfigModal, onConfigRemoved])
 
-  const providerAllConfigured = langSmithConfig && langFuseConfig
-  const providerAllNotConfigured = !langSmithConfig && !langFuseConfig
+  const providerAllConfigured = langSmithConfig && langFuseConfig && opikConfig
+  const providerAllNotConfigured = !langSmithConfig && !langFuseConfig && !opikConfig
 
   const switchContent = (
     <Switch
@@ -90,6 +92,7 @@ const ConfigPopup: FC<PopupProps> = ({
       onConfig={handleOnConfig(TracingProvider.langSmith)}
       isChosen={chosenProvider === TracingProvider.langSmith}
       onChoose={handleOnChoose(TracingProvider.langSmith)}
+      key="langSmith-provider-panel"
     />
   )
 
@@ -102,9 +105,61 @@ const ConfigPopup: FC<PopupProps> = ({
       onConfig={handleOnConfig(TracingProvider.langfuse)}
       isChosen={chosenProvider === TracingProvider.langfuse}
       onChoose={handleOnChoose(TracingProvider.langfuse)}
+      key="langfuse-provider-panel"
     />
   )
 
+  const opikPanel = (
+    <ProviderPanel
+      type={TracingProvider.opik}
+      readOnly={readOnly}
+      config={opikConfig}
+      hasConfigured={!!opikConfig}
+      onConfig={handleOnConfig(TracingProvider.opik)}
+      isChosen={chosenProvider === TracingProvider.opik}
+      onChoose={handleOnChoose(TracingProvider.opik)}
+      key="opik-provider-panel"
+    />
+  )
+
+  const configuredProviderPanel = () => {
+    const configuredPanels: ProviderPanel[] = []
+
+    if (langSmithConfig)
+      configuredPanels.push(langSmithPanel)
+
+    if (langFuseConfig)
+      configuredPanels.push(langfusePanel)
+
+    if (opikConfig)
+      configuredPanels.push(opikPanel)
+
+    return configuredPanels
+  }
+
+  const moreProviderPanel = () => {
+    const notConfiguredPanels: ProviderPanel[] = []
+
+    if (!langSmithConfig)
+      notConfiguredPanels.push(langSmithPanel)
+
+    if (!langFuseConfig)
+      notConfiguredPanels.push(langfusePanel)
+
+    if (!opikConfig)
+      notConfiguredPanels.push(opikPanel)
+
+    return notConfiguredPanels
+  }
+
+  const configuredProviderConfig = () => {
+    if (currentProvider === TracingProvider.langSmith)
+      return langSmithConfig
+    if (currentProvider === TracingProvider.langfuse)
+      return langFuseConfig
+    return opikConfig
+  }
+
   return (
     <div className='w-[420px] p-4 rounded-2xl bg-white border-[0.5px] border-black/5 shadow-lg'>
       <div className='flex justify-between items-center'>
@@ -146,18 +201,19 @@ const ConfigPopup: FC<PopupProps> = ({
               <div className='mt-2 space-y-2'>
                 {langSmithPanel}
                 {langfusePanel}
+                {opikPanel}
               </div>
             </>
           )
           : (
             <>
               <div className='leading-4 text-xs font-medium text-gray-500 uppercase'>{t(`${I18N_PREFIX}.configProviderTitle.configured`)}</div>
-              <div className='mt-2'>
-                {langSmithConfig ? langSmithPanel : langfusePanel}
+              <div className='mt-2 space-y-2'>
+                {configuredProviderPanel()}
               </div>
               <div className='mt-3 leading-4 text-xs font-medium text-gray-500 uppercase'>{t(`${I18N_PREFIX}.configProviderTitle.moreProvider`)}</div>
-              <div className='mt-2'>
-                {!langSmithConfig ? langSmithPanel : langfusePanel}
+              <div className='mt-2 space-y-2'>
+                {moreProviderPanel()}
               </div>
             </>
           )}
@@ -167,7 +223,7 @@ const ConfigPopup: FC<PopupProps> = ({
         <ProviderConfigModal
           appId={appId}
           type={currentProvider!}
-          payload={currentProvider === TracingProvider.langSmith ? langSmithConfig : langFuseConfig}
+          payload={configuredProviderConfig()}
           onCancel={hideConfigModal}
           onSaved={handleConfigUpdated}
           onChosen={onChooseProvider}
diff --git a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config.ts b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config.ts
index bbc1f0f2209980..0f3f280b30d93c 100644
--- a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config.ts
+++ b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/config.ts
@@ -3,4 +3,5 @@ import { TracingProvider } from './type'
 export const docURL = {
   [TracingProvider.langSmith]: 'https://docs.smith.langchain.com/',
   [TracingProvider.langfuse]: 'https://docs.langfuse.com',
+  [TracingProvider.opik]: 'https://www.comet.com/docs/opik/tracing/integrations/dify#setup-instructions',
 }
diff --git a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/panel.tsx b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/panel.tsx
index bc724c1449af64..b62bb1d6d750df 100644
--- a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/panel.tsx
+++ b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/panel.tsx
@@ -9,7 +9,7 @@ import { TracingProvider } from './type'
 import TracingIcon from './tracing-icon'
 import ConfigButton from './config-button'
 import cn from '@/utils/classnames'
-import { LangfuseIcon, LangsmithIcon } from '@/app/components/base/icons/src/public/tracing'
+import { LangfuseIcon, LangsmithIcon, OpikIcon } from '@/app/components/base/icons/src/public/tracing'
 import Indicator from '@/app/components/header/indicator'
 import { fetchTracingConfig as doFetchTracingConfig, fetchTracingStatus, updateTracingStatus } from '@/service/apps'
 import type { TracingStatus } from '@/models/app'
@@ -70,11 +70,20 @@ const Panel: FC = () => {
     })
   }
   const inUseTracingProvider: TracingProvider | null = tracingStatus?.tracing_provider || null
-  const InUseProviderIcon = inUseTracingProvider === TracingProvider.langSmith ? LangsmithIcon : LangfuseIcon
+
+  const InUseProviderIcon
+    = inUseTracingProvider === TracingProvider.langSmith
+      ? LangsmithIcon
+      : inUseTracingProvider === TracingProvider.langfuse
+        ? LangfuseIcon
+        : inUseTracingProvider === TracingProvider.opik
+          ? OpikIcon
+          : null
 
   const [langSmithConfig, setLangSmithConfig] = useState<LangSmithConfig | null>(null)
   const [langFuseConfig, setLangFuseConfig] = useState<LangFuseConfig | null>(null)
-  const hasConfiguredTracing = !!(langSmithConfig || langFuseConfig)
+  const [opikConfig, setOpikConfig] = useState<OpikConfig | null>(null)
+  const hasConfiguredTracing = !!(langSmithConfig || langFuseConfig || opikConfig)
 
   const fetchTracingConfig = async () => {
     const { tracing_config: langSmithConfig, has_not_configured: langSmithHasNotConfig } = await doFetchTracingConfig({ appId, provider: TracingProvider.langSmith })
@@ -83,6 +92,9 @@ const Panel: FC = () => {
     const { tracing_config: langFuseConfig, has_not_configured: langFuseHasNotConfig } = await doFetchTracingConfig({ appId, provider: TracingProvider.langfuse })
     if (!langFuseHasNotConfig)
       setLangFuseConfig(langFuseConfig as LangFuseConfig)
+    const { tracing_config: opikConfig, has_not_configured: OpikHasNotConfig } = await doFetchTracingConfig({ appId, provider: TracingProvider.opik })
+    if (!OpikHasNotConfig)
+      setOpikConfig(opikConfig as OpikConfig)
   }
 
   const handleTracingConfigUpdated = async (provider: TracingProvider) => {
@@ -90,15 +102,19 @@ const Panel: FC = () => {
     const { tracing_config } = await doFetchTracingConfig({ appId, provider })
     if (provider === TracingProvider.langSmith)
       setLangSmithConfig(tracing_config as LangSmithConfig)
-    else
+    else if (provider === TracingProvider.langSmith)
       setLangFuseConfig(tracing_config as LangFuseConfig)
+    else if (provider === TracingProvider.opik)
+      setOpikConfig(tracing_config as OpikConfig)
   }
 
   const handleTracingConfigRemoved = (provider: TracingProvider) => {
     if (provider === TracingProvider.langSmith)
       setLangSmithConfig(null)
-    else
+    else if (provider === TracingProvider.langSmith)
       setLangFuseConfig(null)
+    else if (provider === TracingProvider.opik)
+      setOpikConfig(null)
     if (provider === inUseTracingProvider) {
       handleTracingStatusChange({
         enabled: false,
@@ -167,6 +183,7 @@ const Panel: FC = () => {
             onChooseProvider={handleChooseProvider}
             langSmithConfig={langSmithConfig}
             langFuseConfig={langFuseConfig}
+            opikConfig={opikConfig}
             onConfigUpdated={handleTracingConfigUpdated}
             onConfigRemoved={handleTracingConfigRemoved}
             controlShowPopup={controlShowPopup}
diff --git a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-config-modal.tsx b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-config-modal.tsx
index e7ecd2f4ce3d64..b813e9b1344109 100644
--- a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-config-modal.tsx
+++ b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-config-modal.tsx
@@ -4,7 +4,7 @@ import React, { useCallback, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import { useBoolean } from 'ahooks'
 import Field from './field'
-import type { LangFuseConfig, LangSmithConfig } from './type'
+import type { LangFuseConfig, LangSmithConfig, OpikConfig } from './type'
 import { TracingProvider } from './type'
 import { docURL } from './config'
 import {
@@ -21,10 +21,10 @@ import Toast from '@/app/components/base/toast'
 type Props = {
   appId: string
   type: TracingProvider
-  payload?: LangSmithConfig | LangFuseConfig | null
+  payload?: LangSmithConfig | LangFuseConfig | OpikConfig | null
   onRemoved: () => void
   onCancel: () => void
-  onSaved: (payload: LangSmithConfig | LangFuseConfig) => void
+  onSaved: (payload: LangSmithConfig | LangFuseConfig | OpikConfig) => void
   onChosen: (provider: TracingProvider) => void
 }
 
@@ -42,6 +42,13 @@ const langFuseConfigTemplate = {
   host: '',
 }
 
+const opikConfigTemplate = {
+  api_key: '',
+  project: '',
+  url: '',
+  workspace: '',
+}
+
 const ProviderConfigModal: FC<Props> = ({
   appId,
   type,
@@ -55,14 +62,17 @@ const ProviderConfigModal: FC<Props> = ({
   const isEdit = !!payload
   const isAdd = !isEdit
   const [isSaving, setIsSaving] = useState(false)
-  const [config, setConfig] = useState<LangSmithConfig | LangFuseConfig>((() => {
+  const [config, setConfig] = useState<LangSmithConfig | LangFuseConfig | OpikConfig>((() => {
     if (isEdit)
       return payload
 
     if (type === TracingProvider.langSmith)
       return langSmithConfigTemplate
 
-    return langFuseConfigTemplate
+    else if (type === TracingProvider.langfuse)
+      return langFuseConfigTemplate
+
+    return opikConfigTemplate
   })())
   const [isShowRemoveConfirm, {
     setTrue: showRemoveConfirm,
@@ -111,6 +121,10 @@ const ProviderConfigModal: FC<Props> = ({
         errorMessage = t('common.errorMsg.fieldRequired', { field: 'Host' })
     }
 
+    if (type === TracingProvider.opik) {
+      const postData = config as OpikConfig
+    }
+
     return errorMessage
   }, [config, t, type])
   const handleSave = useCallback(async () => {
@@ -215,6 +229,38 @@ const ProviderConfigModal: FC<Props> = ({
                           />
                         </>
                       )}
+                      {type === TracingProvider.opik && (
+                        <>
+                          <Field
+                            label='API Key'
+                            labelClassName='!text-sm'
+                            value={(config as OpikConfig).api_key}
+                            onChange={handleConfigChange('api_key')}
+                            placeholder={t(`${I18N_PREFIX}.placeholder`, { key: 'API Key' })!}
+                          />
+                          <Field
+                            label={t(`${I18N_PREFIX}.project`)!}
+                            labelClassName='!text-sm'
+                            value={(config as OpikConfig).project}
+                            onChange={handleConfigChange('project')}
+                            placeholder={t(`${I18N_PREFIX}.placeholder`, { key: t(`${I18N_PREFIX}.project`) })!}
+                          />
+                          <Field
+                            label='Workspace'
+                            labelClassName='!text-sm'
+                            value={(config as OpikConfig).workspace}
+                            onChange={handleConfigChange('workspace')}
+                            placeholder={'default'}
+                          />
+                          <Field
+                            label='Url'
+                            labelClassName='!text-sm'
+                            value={(config as OpikConfig).url}
+                            onChange={handleConfigChange('url')}
+                            placeholder={'https://www.comet.com/opik/api/'}
+                          />
+                        </>
+                      )}
 
                     </div>
                     <div className='my-8 flex justify-between items-center h-8'>
diff --git a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-panel.tsx b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-panel.tsx
index 6e5046ecf80e91..34e5bbeb0fbb06 100644
--- a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-panel.tsx
+++ b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/provider-panel.tsx
@@ -4,7 +4,7 @@ import React, { useCallback } from 'react'
 import { useTranslation } from 'react-i18next'
 import { TracingProvider } from './type'
 import cn from '@/utils/classnames'
-import { LangfuseIconBig, LangsmithIconBig } from '@/app/components/base/icons/src/public/tracing'
+import { LangfuseIconBig, LangsmithIconBig, OpikIconBig } from '@/app/components/base/icons/src/public/tracing'
 import { Settings04 } from '@/app/components/base/icons/src/vender/line/general'
 import { Eye as View } from '@/app/components/base/icons/src/vender/solid/general'
 
@@ -24,6 +24,7 @@ const getIcon = (type: TracingProvider) => {
   return ({
     [TracingProvider.langSmith]: LangsmithIconBig,
     [TracingProvider.langfuse]: LangfuseIconBig,
+    [TracingProvider.opik]: OpikIconBig,
   })[type]
 }
 
diff --git a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/type.ts b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/type.ts
index e07cf37c9d26a4..982d01ffb39afd 100644
--- a/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/type.ts
+++ b/web/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/type.ts
@@ -1,6 +1,7 @@
 export enum TracingProvider {
   langSmith = 'langsmith',
   langfuse = 'langfuse',
+  opik = 'opik',
 }
 
 export type LangSmithConfig = {
@@ -14,3 +15,10 @@ export type LangFuseConfig = {
   secret_key: string
   host: string
 }
+
+export type OpikConfig = {
+  api_key: string
+  project: string
+  workspace: string
+  url: string
+}
diff --git a/web/app/(commonLayout)/datasets/Container.tsx b/web/app/(commonLayout)/datasets/Container.tsx
index c39d9c5dbfd69b..f484d30a3d3f8d 100644
--- a/web/app/(commonLayout)/datasets/Container.tsx
+++ b/web/app/(commonLayout)/datasets/Container.tsx
@@ -82,7 +82,7 @@ const Container = () => {
   }, [currentWorkspace, router])
 
   return (
-    <div ref={containerRef} className='grow relative flex flex-col bg-background-body overflow-y-auto'>
+    <div ref={containerRef} className='grow relative flex flex-col bg-background-body overflow-y-auto scroll-container'>
       <div className='sticky top-0 flex justify-between pt-4 px-12 pb-2 leading-[56px] bg-background-body z-10 flex-wrap gap-y-2'>
         <TabSliderNew
           value={activeTab}
diff --git a/web/app/(commonLayout)/datasets/Doc.tsx b/web/app/(commonLayout)/datasets/Doc.tsx
index 553dca5008b16e..f7a7e8b063f1bd 100644
--- a/web/app/(commonLayout)/datasets/Doc.tsx
+++ b/web/app/(commonLayout)/datasets/Doc.tsx
@@ -1,7 +1,9 @@
 'use client'
 
-import { type FC, useEffect } from 'react'
+import { useEffect, useState } from 'react'
 import { useContext } from 'use-context-selector'
+import { useTranslation } from 'react-i18next'
+import { RiListUnordered } from '@remixicon/react'
 import TemplateEn from './template/template.en.mdx'
 import TemplateZh from './template/template.zh.mdx'
 import I18n from '@/context/i18n'
@@ -10,25 +12,106 @@ import { LanguagesSupported } from '@/i18n/language'
 type DocProps = {
   apiBaseUrl: string
 }
-const Doc: FC<DocProps> = ({
-  apiBaseUrl,
-}) => {
+
+const Doc = ({ apiBaseUrl }: DocProps) => {
   const { locale } = useContext(I18n)
+  const { t } = useTranslation()
+  const [toc, setToc] = useState<Array<{ href: string; text: string }>>([])
+  const [isTocExpanded, setIsTocExpanded] = useState(false)
 
+  // Set initial TOC expanded state based on screen width
   useEffect(() => {
-    const hash = location.hash
-    if (hash)
-      document.querySelector(hash)?.scrollIntoView()
+    const mediaQuery = window.matchMedia('(min-width: 1280px)')
+    setIsTocExpanded(mediaQuery.matches)
   }, [])
 
+  // Extract TOC from article content
+  useEffect(() => {
+    const extractTOC = () => {
+      const article = document.querySelector('article')
+      if (article) {
+        const headings = article.querySelectorAll('h2')
+        const tocItems = Array.from(headings).map((heading) => {
+          const anchor = heading.querySelector('a')
+          if (anchor) {
+            return {
+              href: anchor.getAttribute('href') || '',
+              text: anchor.textContent || '',
+            }
+          }
+          return null
+        }).filter((item): item is { href: string; text: string } => item !== null)
+        setToc(tocItems)
+      }
+    }
+
+    setTimeout(extractTOC, 0)
+  }, [locale])
+
+  // Handle TOC item click
+  const handleTocClick = (e: React.MouseEvent<HTMLAnchorElement>, item: { href: string; text: string }) => {
+    e.preventDefault()
+    const targetId = item.href.replace('#', '')
+    const element = document.getElementById(targetId)
+    if (element) {
+      const scrollContainer = document.querySelector('.scroll-container')
+      if (scrollContainer) {
+        const headerOffset = -40
+        const elementTop = element.offsetTop - headerOffset
+        scrollContainer.scrollTo({
+          top: elementTop,
+          behavior: 'smooth',
+        })
+      }
+    }
+  }
+
   return (
-    <article className='mx-1 px-4 sm:mx-12 pt-16 bg-white rounded-t-xl prose prose-xl'>
-      {
-        locale !== LanguagesSupported[1]
+    <div className="flex">
+      <div className={`fixed right-16 top-32 z-10 transition-all ${isTocExpanded ? 'w-64' : 'w-10'}`}>
+        {isTocExpanded
+          ? (
+            <nav className="toc w-full bg-gray-50 p-4 rounded-lg shadow-md max-h-[calc(100vh-150px)] overflow-y-auto">
+              <div className="flex justify-between items-center mb-4">
+                <h3 className="text-lg font-semibold">{t('appApi.develop.toc')}</h3>
+                <button
+                  onClick={() => setIsTocExpanded(false)}
+                  className="text-gray-500 hover:text-gray-700"
+                >
+                ✕
+                </button>
+              </div>
+              <ul className="space-y-2">
+                {toc.map((item, index) => (
+                  <li key={index}>
+                    <a
+                      href={item.href}
+                      className="text-gray-600 hover:text-gray-900 hover:underline transition-colors duration-200"
+                      onClick={e => handleTocClick(e, item)}
+                    >
+                      {item.text}
+                    </a>
+                  </li>
+                ))}
+              </ul>
+            </nav>
+          )
+          : (
+            <button
+              onClick={() => setIsTocExpanded(true)}
+              className="w-10 h-10 bg-gray-50 rounded-full shadow-md flex items-center justify-center hover:bg-gray-100 transition-colors duration-200"
+            >
+              <RiListUnordered className="w-6 h-6" />
+            </button>
+          )}
+      </div>
+      <article className='mx-1 px-4 sm:mx-12 pt-16 bg-white rounded-t-xl prose prose-xl'>
+        {locale !== LanguagesSupported[1]
           ? <TemplateEn apiBaseUrl={apiBaseUrl} />
           : <TemplateZh apiBaseUrl={apiBaseUrl} />
-      }
-    </article>
+        }
+      </article>
+    </div>
   )
 }
 
diff --git a/web/app/components/base/icons/assets/public/tracing/opik-icon-big.svg b/web/app/components/base/icons/assets/public/tracing/opik-icon-big.svg
new file mode 100644
index 00000000000000..99aa2da1a46478
--- /dev/null
+++ b/web/app/components/base/icons/assets/public/tracing/opik-icon-big.svg
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="70.700851"
+   height="24"
+   viewBox="0 0 70.700851 24"
+   fill="none"
+   version="1.1"
+   id="svg6"
+   sodipodi:docname="opik-icon-big.svg"
+   inkscape:version="1.3.2 (091e20ef0f, 2023-11-25)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview6"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:zoom="18.615088"
+     inkscape:cx="36.314629"
+     inkscape:cy="18.989972"
+     inkscape:window-width="2560"
+     inkscape:window-height="1371"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg6" />
+  <rect
+     width="70.700851"
+     height="24"
+     fill="#ffffff"
+     id="rect1"
+     x="0"
+     y="0"
+     style="stroke-width:0.0683761;fill:none" />
+  <path
+     fill-rule="evenodd"
+     clip-rule="evenodd"
+     d="M 14.463316,5.8949744 C 11.191179,4.456547 7.3065299,5.9932444 5.8118769,9.3932308 4.3172308,12.793231 5.8113846,16.694496 9.0834872,18.132923 c 1.3197948,0.580171 2.7316238,0.676855 4.0492308,0.364923 0.567179,-0.13429 1.135863,0.216684 1.270085,0.783863 0.134291,0.56718 -0.216615,1.135864 -0.783863,1.270154 C 11.873983,20.964923 9.9916581,20.83788 8.2340513,20.065231 3.8540444,18.139761 1.9338872,12.969778 3.8795692,8.5437949 5.8252581,4.1177778 10.932786,2.0372103 15.312752,3.9626667 c 2.672342,1.1747624 4.432069,3.564376 4.952137,6.2470423 0.110974,0.57224 -0.262974,1.126017 -0.835214,1.236992 -0.572171,0.110906 -1.126017,-0.263043 -1.236923,-0.835282 C 17.796308,8.5668376 16.46359,6.7742906 14.463316,5.8949744 Z M 18.01388,17.557812 c 0.20424,0.856752 -0.324786,1.716786 -1.181538,1.921026 -0.856752,0.204171 -1.716855,-0.324787 -1.921026,-1.181539 -0.204239,-0.856752 0.324787,-1.716855 1.181539,-1.921025 0.856752,-0.20424 1.716854,0.324786 1.921025,1.181538 z m 1.329368,-1.216547 c 1.144615,-0.272821 1.85135,-1.42188 1.57853,-2.566427 -0.272821,-1.144616 -1.421881,-1.851351 -2.566428,-1.57853 -1.144615,0.27282 -1.85135,1.421812 -1.578529,2.566427 0.27282,1.144615 1.42188,1.85135 2.566427,1.57853 z"
+     fill="url(#paint0_linear_3874_31725)"
+     id="path1"
+     style="fill:url(#paint0_linear_3874_31725);stroke-width:0.0683761" />
+  <path
+     d="m 31.039658,17.805538 c -1.082803,0 -2.046769,-0.231042 -2.891897,-0.693196 -0.84506,-0.475419 -1.511932,-1.122462 -2.000479,-1.941128 -0.488615,-0.818667 -0.732855,-1.749607 -0.732855,-2.792821 0,-1.056342 0.24424,-1.987282 0.732855,-2.7928204 0.488547,-0.8186666 1.155419,-1.4590769 2.000479,-1.9212991 0.845128,-0.4621538 1.809094,-0.6931966 2.891897,-0.6931966 1.096,0 2.06653,0.2310428 2.911658,0.6931966 0.858257,0.4622222 1.525128,1.096 2.000479,1.9015385 0.488615,0.80547 0.732855,1.742974 0.732855,2.812581 0,1.043214 -0.24424,1.974154 -0.732855,2.792821 -0.475351,0.818666 -1.142222,1.465709 -2.000479,1.941128 -0.845128,0.462154 -1.815658,0.693196 -2.911658,0.693196 z m 0,-2.119316 c 0.607385,0 1.148786,-0.132102 1.624137,-0.396171 0.475419,-0.264068 0.845128,-0.647042 1.109196,-1.148786 0.277334,-0.501812 0.416,-1.089436 0.416,-1.762872 0,-0.686632 -0.138666,-1.274256 -0.416,-1.762803 -0.264068,-0.501812 -0.633777,-0.8847182 -1.109196,-1.148855 -0.475351,-0.2640683 -1.01012,-0.3961025 -1.604376,-0.3961025 -0.607385,0 -1.148787,0.1320342 -1.624137,0.3961025 -0.462222,0.2641368 -0.831932,0.647043 -1.109265,1.148855 -0.277265,0.488547 -0.415932,1.076171 -0.415932,1.762803 0,0.673436 0.138667,1.26106 0.415932,1.762872 0.277333,0.501744 0.647043,0.884718 1.109265,1.148786 0.47535,0.264069 1.01012,0.396171 1.604376,0.396171 z"
+     fill="#3a3a3a"
+     id="path2"
+     style="stroke-width:0.0683761" />
+  <path
+     d="m 44.915145,17.805538 c -0.858256,0 -1.643966,-0.198017 -2.35706,-0.594188 -0.699829,-0.396171 -1.261059,-0.990359 -1.683555,-1.782632 -0.409368,-0.805539 -0.614017,-1.822291 -0.614017,-3.050325 0,-1.241231 0.198017,-2.257983 0.594188,-3.0503246 0.409367,-0.7922735 0.963966,-1.3798975 1.663795,-1.7628034 0.699829,-0.396171 1.498735,-0.5941881 2.396649,-0.5941881 1.043214,0 1.960958,0.2244787 2.753231,0.6734359 0.80547,0.4489573 1.439316,1.076171 1.90147,1.881641 0.475351,0.8055382 0.713026,1.7562392 0.713026,2.8522392 0,1.096 -0.237675,2.053333 -0.713026,2.872069 -0.462154,0.80547 -1.096,1.432683 -1.90147,1.881641 -0.792273,0.448957 -1.710017,0.673435 -2.753231,0.673435 z m -4.714598,3.703932 c -0.634188,0 -1.148308,-0.514051 -1.148308,-1.148239 V 8.2381538 c 0,-0.634188 0.51412,-1.1482393 1.148308,-1.1482393 h 0.06044 c 0.634188,0 1.148308,0.5140513 1.148308,1.1482393 v 1.3474188 l -0.07925,2.8126494 0.198086,2.812581 v 5.150428 c 0,0.634188 -0.51412,1.148239 -1.148308,1.148239 z m 4.437333,-5.823248 c 0.594188,0 1.122394,-0.132102 1.584547,-0.396171 0.475351,-0.264068 0.851693,-0.647042 1.129026,-1.148786 0.277265,-0.501812 0.415932,-1.089436 0.415932,-1.762872 0,-0.686632 -0.138667,-1.274256 -0.415932,-1.762803 C 47.07412,10.113778 46.697778,9.7308718 46.222427,9.466735 45.760274,9.2026667 45.232068,9.0706325 44.63788,9.0706325 c -0.594256,0 -1.129025,0.1320342 -1.604376,0.3961025 -0.475419,0.2641368 -0.85176,0.647043 -1.129025,1.148855 -0.277334,0.488547 -0.415932,1.076171 -0.415932,1.762803 0,0.673436 0.138598,1.26106 0.415932,1.762872 0.277265,0.501744 0.653606,0.884718 1.129025,1.148786 0.475351,0.264069 1.01012,0.396171 1.604376,0.396171 z"
+     fill="#3a3a3a"
+     id="path3"
+     style="stroke-width:0.0683761" />
+  <path
+     d="m 53.779282,17.66694 c -0.634188,0 -1.148308,-0.514119 -1.148308,-1.148308 V 8.2381538 c 0,-0.634188 0.51412,-1.1482393 1.148308,-1.1482393 h 0.179282 c 0.634188,0 1.148308,0.5140513 1.148308,1.1482393 v 8.2804782 c 0,0.634189 -0.51412,1.148308 -1.148308,1.148308 z m 0.09956,-12.3200819 c -0.462154,0 -0.845129,-0.1452513 -1.148855,-0.4357607 -0.290462,-0.2905025 -0.435692,-0.6404307 -0.435692,-1.0497777 0,-0.4225505 0.14523,-0.7724787 0.435692,-1.0497778 0.303726,-0.2905026 0.686701,-0.4357607 1.148855,-0.4357607 0.462153,0 0.838495,0.138653 1.129025,0.4159521 0.303658,0.2640958 0.455522,0.6008205 0.455522,1.0101676 0,0.4357538 -0.145231,0.8054906 -0.435761,1.1091965 -0.290462,0.2905094 -0.673436,0.4357607 -1.148786,0.4357607 z"
+     fill="#3a3a3a"
+     id="path4"
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+					"d": "m 29.934026,11.857146 c -0.571992,0 -1.095634,-0.131865 -1.57088,-0.395684 -0.466407,-0.26382 -0.840442,-0.659504 -1.122018,-1.1871 -0.272826,-0.5364272 -0.409217,-1.2135074 -0.409217,-2.0312856 0,-0.826566 0.131971,-1.5036463 0.396002,-2.0312862 0.272826,-0.5275944 0.642442,-0.9189077 1.108848,-1.1738942 0.466406,-0.26382 0.998843,-0.3956845 1.597265,-0.3956845 0.695257,0 1.306893,0.1494859 1.83491,0.4484576 0.536811,0.2989717 0.959243,0.7166486 1.267248,1.253031 0.316801,0.5364279 0.475202,1.169523 0.475202,1.8993763 0,0.7298534 -0.158401,1.3673652 -0.475202,1.9125806 -0.308005,0.536383 -0.730437,0.95406 -1.267248,1.253031 -0.528017,0.298972 -1.139653,0.448458 -1.83491,0.448458 z m -3.142079,2.466539 c -0.422659,0 -0.765298,-0.342319 -0.765298,-0.764641 V 5.4859892 c 0,-0.4223213 0.342639,-0.7646408 0.765298,-0.7646408 h 0.04028 c 0.42266,0 0.765299,0.3423195 0.765299,0.7646408 v 0.8972793 l -0.05281,1.8730126 0.132016,1.8729669 v 3.429796 c 0,0.422322 -0.342639,0.764641 -0.765298,0.764641 z m 2.957293,-3.877843 c 0.396001,0 0.748027,-0.08797 1.056033,-0.263821 0.316801,-0.17585 0.567616,-0.4308815 0.752447,-0.7650049 0.184786,-0.3341689 0.277201,-0.7254822 0.277201,-1.1739397 0,-0.4572454 -0.09241,-0.8485586 -0.277201,-1.1738941 C 31.372889,6.7350133 31.122074,6.4800268 30.805273,6.3041317 30.497267,6.1282821 30.145241,6.0403572 29.74924,6.0403572 c -0.396046,0 -0.752447,0.087925 -1.069248,0.2637745 -0.316846,0.1758951 -0.567662,0.4308816 -0.752447,0.7650506 -0.184831,0.3253355 -0.277201,0.7166487 -0.277201,1.1738941 0,0.4484575 0.09237,0.8397708 0.277201,1.1739397 0.184785,0.3341234 0.435601,0.5891549 0.752447,0.7650049 0.316801,0.17585 0.673202,0.263821 1.069248,0.263821 z",
+					"fill": "#3a3a3a",
+					"id": "path3",
+					"style": "stroke-width:0.0455515"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "path",
+				"attributes": {
+					"d": "m 35.841594,11.76485 c -0.422659,0 -0.765298,-0.342365 -0.765298,-0.764686 V 5.4859892 c 0,-0.4223213 0.342639,-0.7646408 0.765298,-0.7646408 h 0.119484 c 0.422659,0 0.765298,0.3423195 0.765298,0.7646408 v 5.5141748 c 0,0.422321 -0.342639,0.764686 -0.765298,0.764686 z m 0.06635,-8.2042457 c -0.308006,0 -0.563241,-0.096726 -0.765662,-0.2901837 -0.19358,-0.1934528 -0.290371,-0.4264787 -0.290371,-0.6990729 0,-0.2813867 0.0968,-0.5144125 0.290371,-0.6990728 0.202421,-0.1934528 0.457656,-0.2901838 0.765662,-0.2901838 0.308006,0 0.558822,0.092332 0.752448,0.2769928 0.202375,0.1758678 0.303585,0.4001011 0.303585,0.6726954 0,0.2901792 -0.0968,0.536396 -0.290415,0.7386413 -0.19358,0.1934573 -0.448817,0.2901837 -0.765618,0.2901837 z",
+					"fill": "#3a3a3a",
+					"id": "path4",
+					"style": "stroke-width:0.0455515"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "path",
+				"attributes": {
+					"d": "m 40.238571,10.195226 0.0396,-2.0708549 3.479613,-3.2151067 c 0.130739,-0.1208454 0.302264,-0.187916 0.480351,-0.187916 v 0 c 0.629636,0 0.945662,0.7599964 0.501357,1.2058131 l -1.926779,1.9333896 -0.871247,0.7254822 z m -0.581195,1.569624 c -0.42266,0 -0.765253,-0.342365 -0.765253,-0.764686 V 2.7424664 c 0,-0.4223168 0.342593,-0.7646726 0.765253,-0.7646726 h 0.119528 c 0.42266,0 0.765298,0.3423558 0.765298,0.7646726 v 8.2576976 c 0,0.422321 -0.342638,0.764686 -0.765298,0.764686 z m 4.919799,0 c -0.230994,0 -0.449637,-0.104271 -0.594959,-0.283718 l -2.34438,-2.8950987 1.042863,-1.3190088 2.564664,3.2606405 c 0.394542,0.501685 0.03692,1.237185 -0.601702,1.237185 z",
+					"fill": "#3a3a3a",
+					"id": "path5",
+					"style": "stroke-width:0.0455515"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "defs",
+				"attributes": {
+					"id": "defs6"
+				},
+				"children": [
+					{
+						"type": "element",
+						"name": "linearGradient",
+						"attributes": {
+							"id": "paint0_linear_3874_31725",
+							"x1": "258.13101",
+							"y1": "269.78299",
+							"x2": "88.645203",
+							"y2": "75.4571",
+							"gradientUnits": "userSpaceOnUse",
+							"gradientTransform": "scale(0.04556973,0.04553331)"
+						},
+						"children": [
+							{
+								"type": "element",
+								"name": "stop",
+								"attributes": {
+									"stop-color": "#FB9341",
+									"id": "stop5"
+								},
+								"children": []
+							},
+							{
+								"type": "element",
+								"name": "stop",
+								"attributes": {
+									"offset": "1",
+									"stop-color": "#E30D3E",
+									"id": "stop6"
+								},
+								"children": []
+							}
+						]
+					}
+				]
+			}
+		]
+	},
+	"name": "OpikIcon"
+}
\ No newline at end of file
diff --git a/web/app/components/base/icons/src/public/tracing/OpikIcon.tsx b/web/app/components/base/icons/src/public/tracing/OpikIcon.tsx
new file mode 100644
index 00000000000000..4729baae795aed
--- /dev/null
+++ b/web/app/components/base/icons/src/public/tracing/OpikIcon.tsx
@@ -0,0 +1,16 @@
+// GENERATE BY script
+// DON NOT EDIT IT MANUALLY
+
+import * as React from 'react'
+import data from './OpikIcon.json'
+import IconBase from '@/app/components/base/icons/IconBase'
+import type { IconBaseProps, IconData } from '@/app/components/base/icons/IconBase'
+
+const Icon = React.forwardRef<React.MutableRefObject<SVGElement>, Omit<IconBaseProps, 'data'>>((
+  props,
+  ref,
+) => <IconBase {...props} ref={ref} data={data as IconData} />)
+
+Icon.displayName = 'OpikIcon'
+
+export default Icon
diff --git a/web/app/components/base/icons/src/public/tracing/OpikIconBig.json b/web/app/components/base/icons/src/public/tracing/OpikIconBig.json
new file mode 100644
index 00000000000000..1372a92c0e18da
--- /dev/null
+++ b/web/app/components/base/icons/src/public/tracing/OpikIconBig.json
@@ -0,0 +1,162 @@
+{
+	"icon": {
+		"type": "element",
+		"isRootNode": true,
+		"name": "svg",
+		"attributes": {
+			"width": "70.700851",
+			"height": "24",
+			"viewBox": "0 0 70.700851 24",
+			"fill": "none",
+			"version": "1.1",
+			"id": "svg6",
+			"sodipodi:docname": "opik-icon-big.svg",
+			"inkscape:version": "1.3.2 (091e20ef0f, 2023-11-25)",
+			"xmlns:inkscape": "http://www.inkscape.org/namespaces/inkscape",
+			"xmlns:sodipodi": "http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd",
+			"xmlns": "http://www.w3.org/2000/svg",
+			"xmlns:svg": "http://www.w3.org/2000/svg"
+		},
+		"children": [
+			{
+				"type": "element",
+				"name": "sodipodi:namedview",
+				"attributes": {
+					"id": "namedview6",
+					"pagecolor": "#ffffff",
+					"bordercolor": "#666666",
+					"borderopacity": "1.0",
+					"inkscape:showpageshadow": "2",
+					"inkscape:pageopacity": "0.0",
+					"inkscape:pagecheckerboard": "0",
+					"inkscape:deskcolor": "#d1d1d1",
+					"inkscape:zoom": "18.615088",
+					"inkscape:cx": "36.314629",
+					"inkscape:cy": "18.989972",
+					"inkscape:window-width": "2560",
+					"inkscape:window-height": "1371",
+					"inkscape:window-x": "0",
+					"inkscape:window-y": "0",
+					"inkscape:window-maximized": "1",
+					"inkscape:current-layer": "svg6"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "rect",
+				"attributes": {
+					"width": "70.700851",
+					"height": "24",
+					"fill": "#ffffff",
+					"id": "rect1",
+					"x": "0",
+					"y": "0",
+					"style": "stroke-width:0.0683761;fill:none"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "path",
+				"attributes": {
+					"fill-rule": "evenodd",
+					"clip-rule": "evenodd",
+					"d": "M 14.463316,5.8949744 C 11.191179,4.456547 7.3065299,5.9932444 5.8118769,9.3932308 4.3172308,12.793231 5.8113846,16.694496 9.0834872,18.132923 c 1.3197948,0.580171 2.7316238,0.676855 4.0492308,0.364923 0.567179,-0.13429 1.135863,0.216684 1.270085,0.783863 0.134291,0.56718 -0.216615,1.135864 -0.783863,1.270154 C 11.873983,20.964923 9.9916581,20.83788 8.2340513,20.065231 3.8540444,18.139761 1.9338872,12.969778 3.8795692,8.5437949 5.8252581,4.1177778 10.932786,2.0372103 15.312752,3.9626667 c 2.672342,1.1747624 4.432069,3.564376 4.952137,6.2470423 0.110974,0.57224 -0.262974,1.126017 -0.835214,1.236992 -0.572171,0.110906 -1.126017,-0.263043 -1.236923,-0.835282 C 17.796308,8.5668376 16.46359,6.7742906 14.463316,5.8949744 Z M 18.01388,17.557812 c 0.20424,0.856752 -0.324786,1.716786 -1.181538,1.921026 -0.856752,0.204171 -1.716855,-0.324787 -1.921026,-1.181539 -0.204239,-0.856752 0.324787,-1.716855 1.181539,-1.921025 0.856752,-0.20424 1.716854,0.324786 1.921025,1.181538 z m 1.329368,-1.216547 c 1.144615,-0.272821 1.85135,-1.42188 1.57853,-2.566427 -0.272821,-1.144616 -1.421881,-1.851351 -2.566428,-1.57853 -1.144615,0.27282 -1.85135,1.421812 -1.578529,2.566427 0.27282,1.144615 1.42188,1.85135 2.566427,1.57853 z",
+					"fill": "url(#paint0_linear_3874_31725)",
+					"id": "path1",
+					"style": "fill:url(#paint0_linear_3874_31725);stroke-width:0.0683761"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "path",
+				"attributes": {
+					"d": "m 31.039658,17.805538 c -1.082803,0 -2.046769,-0.231042 -2.891897,-0.693196 -0.84506,-0.475419 -1.511932,-1.122462 -2.000479,-1.941128 -0.488615,-0.818667 -0.732855,-1.749607 -0.732855,-2.792821 0,-1.056342 0.24424,-1.987282 0.732855,-2.7928204 0.488547,-0.8186666 1.155419,-1.4590769 2.000479,-1.9212991 0.845128,-0.4621538 1.809094,-0.6931966 2.891897,-0.6931966 1.096,0 2.06653,0.2310428 2.911658,0.6931966 0.858257,0.4622222 1.525128,1.096 2.000479,1.9015385 0.488615,0.80547 0.732855,1.742974 0.732855,2.812581 0,1.043214 -0.24424,1.974154 -0.732855,2.792821 -0.475351,0.818666 -1.142222,1.465709 -2.000479,1.941128 -0.845128,0.462154 -1.815658,0.693196 -2.911658,0.693196 z m 0,-2.119316 c 0.607385,0 1.148786,-0.132102 1.624137,-0.396171 0.475419,-0.264068 0.845128,-0.647042 1.109196,-1.148786 0.277334,-0.501812 0.416,-1.089436 0.416,-1.762872 0,-0.686632 -0.138666,-1.274256 -0.416,-1.762803 -0.264068,-0.501812 -0.633777,-0.8847182 -1.109196,-1.148855 -0.475351,-0.2640683 -1.01012,-0.3961025 -1.604376,-0.3961025 -0.607385,0 -1.148787,0.1320342 -1.624137,0.3961025 -0.462222,0.2641368 -0.831932,0.647043 -1.109265,1.148855 -0.277265,0.488547 -0.415932,1.076171 -0.415932,1.762803 0,0.673436 0.138667,1.26106 0.415932,1.762872 0.277333,0.501744 0.647043,0.884718 1.109265,1.148786 0.47535,0.264069 1.01012,0.396171 1.604376,0.396171 z",
+					"fill": "#3a3a3a",
+					"id": "path2",
+					"style": "stroke-width:0.0683761"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "path",
+				"attributes": {
+					"d": "m 44.915145,17.805538 c -0.858256,0 -1.643966,-0.198017 -2.35706,-0.594188 -0.699829,-0.396171 -1.261059,-0.990359 -1.683555,-1.782632 -0.409368,-0.805539 -0.614017,-1.822291 -0.614017,-3.050325 0,-1.241231 0.198017,-2.257983 0.594188,-3.0503246 0.409367,-0.7922735 0.963966,-1.3798975 1.663795,-1.7628034 0.699829,-0.396171 1.498735,-0.5941881 2.396649,-0.5941881 1.043214,0 1.960958,0.2244787 2.753231,0.6734359 0.80547,0.4489573 1.439316,1.076171 1.90147,1.881641 0.475351,0.8055382 0.713026,1.7562392 0.713026,2.8522392 0,1.096 -0.237675,2.053333 -0.713026,2.872069 -0.462154,0.80547 -1.096,1.432683 -1.90147,1.881641 -0.792273,0.448957 -1.710017,0.673435 -2.753231,0.673435 z m -4.714598,3.703932 c -0.634188,0 -1.148308,-0.514051 -1.148308,-1.148239 V 8.2381538 c 0,-0.634188 0.51412,-1.1482393 1.148308,-1.1482393 h 0.06044 c 0.634188,0 1.148308,0.5140513 1.148308,1.1482393 v 1.3474188 l -0.07925,2.8126494 0.198086,2.812581 v 5.150428 c 0,0.634188 -0.51412,1.148239 -1.148308,1.148239 z m 4.437333,-5.823248 c 0.594188,0 1.122394,-0.132102 1.584547,-0.396171 0.475351,-0.264068 0.851693,-0.647042 1.129026,-1.148786 0.277265,-0.501812 0.415932,-1.089436 0.415932,-1.762872 0,-0.686632 -0.138667,-1.274256 -0.415932,-1.762803 C 47.07412,10.113778 46.697778,9.7308718 46.222427,9.466735 45.760274,9.2026667 45.232068,9.0706325 44.63788,9.0706325 c -0.594256,0 -1.129025,0.1320342 -1.604376,0.3961025 -0.475419,0.2641368 -0.85176,0.647043 -1.129025,1.148855 -0.277334,0.488547 -0.415932,1.076171 -0.415932,1.762803 0,0.673436 0.138598,1.26106 0.415932,1.762872 0.277265,0.501744 0.653606,0.884718 1.129025,1.148786 0.475351,0.264069 1.01012,0.396171 1.604376,0.396171 z",
+					"fill": "#3a3a3a",
+					"id": "path3",
+					"style": "stroke-width:0.0683761"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "path",
+				"attributes": {
+					"d": "m 53.779282,17.66694 c -0.634188,0 -1.148308,-0.514119 -1.148308,-1.148308 V 8.2381538 c 0,-0.634188 0.51412,-1.1482393 1.148308,-1.1482393 h 0.179282 c 0.634188,0 1.148308,0.5140513 1.148308,1.1482393 v 8.2804782 c 0,0.634189 -0.51412,1.148308 -1.148308,1.148308 z m 0.09956,-12.3200819 c -0.462154,0 -0.845129,-0.1452513 -1.148855,-0.4357607 -0.290462,-0.2905025 -0.435692,-0.6404307 -0.435692,-1.0497777 0,-0.4225505 0.14523,-0.7724787 0.435692,-1.0497778 0.303726,-0.2905026 0.686701,-0.4357607 1.148855,-0.4357607 0.462153,0 0.838495,0.138653 1.129025,0.4159521 0.303658,0.2640958 0.455522,0.6008205 0.455522,1.0101676 0,0.4357538 -0.145231,0.8054906 -0.435761,1.1091965 -0.290462,0.2905094 -0.673436,0.4357607 -1.148786,0.4357607 z",
+					"fill": "#3a3a3a",
+					"id": "path4",
+					"style": "stroke-width:0.0683761"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "path",
+				"attributes": {
+					"d": "m 60.376821,15.30988 0.05942,-3.109743 5.22106,-4.8280344 c 0.196169,-0.1814701 0.453537,-0.2821881 0.72075,-0.2821881 v 0 c 0.944752,0 1.41894,1.141265 0.752274,1.8107351 l -2.891077,2.9033164 -1.307282,1.089436 z m -0.872069,2.35706 c -0.634188,0 -1.148239,-0.514119 -1.148239,-1.148308 V 4.1182838 c 0,-0.6341812 0.514051,-1.1482872 1.148239,-1.1482872 h 0.179351 c 0.634188,0 1.148307,0.514106 1.148307,1.1482872 V 16.518632 c 0,0.634189 -0.514119,1.148308 -1.148307,1.148308 z m 7.382017,0 c -0.346598,0 -0.674666,-0.156581 -0.892718,-0.426051 l -3.517675,-4.347487 1.564786,-1.980718 3.848206,4.89641 c 0.592,0.753368 0.05538,1.857846 -0.902838,1.857846 z",
+					"fill": "#3a3a3a",
+					"id": "path5",
+					"style": "stroke-width:0.0683761"
+				},
+				"children": []
+			},
+			{
+				"type": "element",
+				"name": "defs",
+				"attributes": {
+					"id": "defs6"
+				},
+				"children": [
+					{
+						"type": "element",
+						"name": "linearGradient",
+						"attributes": {
+							"id": "paint0_linear_3874_31725",
+							"x1": "258.13101",
+							"y1": "269.78299",
+							"x2": "88.645203",
+							"y2": "75.4571",
+							"gradientUnits": "userSpaceOnUse",
+							"gradientTransform": "scale(0.06837607)"
+						},
+						"children": [
+							{
+								"type": "element",
+								"name": "stop",
+								"attributes": {
+									"stop-color": "#FB9341",
+									"id": "stop5"
+								},
+								"children": []
+							},
+							{
+								"type": "element",
+								"name": "stop",
+								"attributes": {
+									"offset": "1",
+									"stop-color": "#E30D3E",
+									"id": "stop6"
+								},
+								"children": []
+							}
+						]
+					}
+				]
+			}
+		]
+	},
+	"name": "OpikIconBig"
+}
\ No newline at end of file
diff --git a/web/app/components/base/icons/src/public/tracing/OpikIconBig.tsx b/web/app/components/base/icons/src/public/tracing/OpikIconBig.tsx
new file mode 100644
index 00000000000000..10b41b961ce87a
--- /dev/null
+++ b/web/app/components/base/icons/src/public/tracing/OpikIconBig.tsx
@@ -0,0 +1,16 @@
+// GENERATE BY script
+// DON NOT EDIT IT MANUALLY
+
+import * as React from 'react'
+import data from './OpikIconBig.json'
+import IconBase from '@/app/components/base/icons/IconBase'
+import type { IconBaseProps, IconData } from '@/app/components/base/icons/IconBase'
+
+const Icon = React.forwardRef<React.MutableRefObject<SVGElement>, Omit<IconBaseProps, 'data'>>((
+  props,
+  ref,
+) => <IconBase {...props} ref={ref} data={data as IconData} />)
+
+Icon.displayName = 'OpikIconBig'
+
+export default Icon
diff --git a/web/app/components/base/icons/src/public/tracing/index.ts b/web/app/components/base/icons/src/public/tracing/index.ts
index 9cedf9cec39fb0..09ffd54bd4710c 100644
--- a/web/app/components/base/icons/src/public/tracing/index.ts
+++ b/web/app/components/base/icons/src/public/tracing/index.ts
@@ -2,4 +2,6 @@ export { default as LangfuseIconBig } from './LangfuseIconBig'
 export { default as LangfuseIcon } from './LangfuseIcon'
 export { default as LangsmithIconBig } from './LangsmithIconBig'
 export { default as LangsmithIcon } from './LangsmithIcon'
+export { default as OpikIconBig } from './OpikIconBig'
+export { default as OpikIcon } from './OpikIcon'
 export { default as TracingIcon } from './TracingIcon'
diff --git a/web/app/components/workflow/hooks/use-workflow-run.ts b/web/app/components/workflow/hooks/use-workflow-run.ts
index 11f0a1973f9ba9..53a6b5846552f4 100644
--- a/web/app/components/workflow/hooks/use-workflow-run.ts
+++ b/web/app/components/workflow/hooks/use-workflow-run.ts
@@ -760,7 +760,21 @@ export const useWorkflowRun = () => {
       edges,
       viewport,
     })
-    featuresStore?.setState({ features: publishedWorkflow.features })
+    const mappedFeatures = {
+      opening: {
+        enabled: !!publishedWorkflow.features.opening_statement || !!publishedWorkflow.features.suggested_questions.length,
+        opening_statement: publishedWorkflow.features.opening_statement,
+        suggested_questions: publishedWorkflow.features.suggested_questions,
+      },
+      suggested: publishedWorkflow.features.suggested_questions_after_answer,
+      text2speech: publishedWorkflow.features.text_to_speech,
+      speech2text: publishedWorkflow.features.speech_to_text,
+      citation: publishedWorkflow.features.retriever_resource,
+      moderation: publishedWorkflow.features.sensitive_word_avoidance,
+      file: publishedWorkflow.features.file_upload,
+    }
+
+    featuresStore?.setState({ features: mappedFeatures })
     workflowStore.getState().setPublishedAt(publishedWorkflow.created_at)
     workflowStore.getState().setEnvironmentVariables(publishedWorkflow.environment_variables || [])
   }, [featuresStore, handleUpdateWorkflowCanvas, workflowStore])
diff --git a/web/app/components/workflow/nodes/knowledge-retrieval/utils.ts b/web/app/components/workflow/nodes/knowledge-retrieval/utils.ts
index c7b48c1eaaba6a..fd4a5806eb6436 100644
--- a/web/app/components/workflow/nodes/knowledge-retrieval/utils.ts
+++ b/web/app/components/workflow/nodes/knowledge-retrieval/utils.ts
@@ -167,6 +167,9 @@ export const getMultipleRetrievalConfig = (
         }
       }
     }
+    else {
+      result.reranking_enable = true
+    }
   }
 
   if (allHighQuality && !inconsistentEmbeddingModel && allInternal) {
@@ -205,13 +208,6 @@ export const getMultipleRetrievalConfig = (
       result.reranking_mode = RerankingModeEnum.WeightedScore
       setDefaultWeights()
     }
-    if (reranking_mode === RerankingModeEnum.RerankingModel && rerankModelIsValid) {
-      result.reranking_enable = true
-      result.reranking_model = {
-        provider: validRerankModel.provider || '',
-        model: validRerankModel.model || '',
-      }
-    }
   }
 
   return result
diff --git a/web/i18n/en-US/app.ts b/web/i18n/en-US/app.ts
index 861827d3e3a3f5..343b01e9b5d347 100644
--- a/web/i18n/en-US/app.ts
+++ b/web/i18n/en-US/app.ts
@@ -157,6 +157,10 @@ const translation = {
       title: 'Langfuse',
       description: 'Traces, evals, prompt management and metrics to debug and improve your LLM application.',
     },
+    opik: {
+      title: 'Opik',
+      description: 'Opik is an open-source platform for evaluating, testing, and monitoring LLM applications.',
+    },
     inUse: 'In use',
     configProvider: {
       title: 'Config ',
diff --git a/web/i18n/zh-Hans/app.ts b/web/i18n/zh-Hans/app.ts
index 3d3e95130d8151..be93a84195b844 100644
--- a/web/i18n/zh-Hans/app.ts
+++ b/web/i18n/zh-Hans/app.ts
@@ -157,6 +157,10 @@ const translation = {
       title: 'Langfuse',
       description: '跟踪、评估、提示管理和指标，以调试和改进您的 LLM 应用程序。',
     },
+    opik: {
+      title: 'Opik',
+      description: '一个全方位的开发者平台，适用于 LLM 驱动应用程序生命周期的每个步骤。',
+    },
     inUse: '使用中',
     configProvider: {
       title: '配置 ',
diff --git a/web/models/app.ts b/web/models/app.ts
index acb1c09622d270..edf8554457fae9 100644
--- a/web/models/app.ts
+++ b/web/models/app.ts
@@ -1,4 +1,4 @@
-import type { LangFuseConfig, LangSmithConfig, TracingProvider } from '@/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/type'
+import type { LangFuseConfig, LangSmithConfig, OpikConfig, TracingProvider } from '@/app/(commonLayout)/app/(appDetailLayout)/[appId]/overview/tracing/type'
 import type { App, AppSSO, AppTemplate, SiteConfig } from '@/types/app'
 
 /* export type App = {
@@ -165,5 +165,5 @@ export type TracingStatus = {
 
 export type TracingConfig = {
   tracing_provider: TracingProvider
-  tracing_config: LangSmithConfig | LangFuseConfig
+  tracing_config: LangSmithConfig | LangFuseConfig | OpikConfig
 }
diff --git a/web/package.json b/web/package.json
index 7afb766d87b21d..879b87c596a60e 100644
--- a/web/package.json
+++ b/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dify-web",
-  "version": "0.15.0",
+  "version": "0.15.1",
   "private": true,
   "engines": {
     "node": ">=18.17.0"