diff --git a/source/infrastructure/lib/model/model-construct.ts b/source/infrastructure/lib/model/model-construct.ts
index 6d22f93f..99bdcf6c 100644
--- a/source/infrastructure/lib/model/model-construct.ts
+++ b/source/infrastructure/lib/model/model-construct.ts
@@ -72,7 +72,7 @@ export class ModelConstruct extends NestedStack implements ModelConstructOutputs
   modelAccount = Aws.ACCOUNT_ID;
   modelRegion = Aws.REGION;
   modelIamHelper: IAMHelper;
-  modelExecutionRole?: iam.Role;
+  modelExecutionRole?: iam.Role = undefined;
   modelImageUrlDomain?: string;
   modelPublicEcrAccount?: string;
   modelVariantName?: string;
@@ -81,56 +81,33 @@ export class ModelConstruct extends NestedStack implements ModelConstructOutputs
     super(scope, id);
     this.modelIamHelper = props.sharedConstructOutputs.iamHelper;
 
-    // this.defaultEmbeddingModelName = "cohere.embed-english-v3"
+    // handle embedding model name setup
     if (props.config.model.embeddingsModels[0].provider === "bedrock") {
       this.defaultEmbeddingModelName = props.config.model.embeddingsModels[0].name;
-    } else {
-      this.modelVariantName = "variantProd";
-      this.modelImageUrlDomain =
-        this.modelRegion === "cn-north-1" || this.modelRegion === "cn-northwest-1"
-          ? ".amazonaws.com.cn/"
-          : ".amazonaws.com/";
-
-      this.modelPublicEcrAccount =
-        this.modelRegion === "cn-north-1" || this.modelRegion === "cn-northwest-1"
-          ? "727897471807.dkr.ecr."
-          : "763104351884.dkr.ecr.";
-
-
-      // Create IAM execution role
-      const executionRole = new iam.Role(this, "intelli-agent-endpoint-execution-role", {
-        assumedBy: new iam.ServicePrincipal("sagemaker.amazonaws.com"),
-        managedPolicies: [
-          iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonSageMakerFullAccess"),
-          iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonS3FullAccess"),
-          iam.ManagedPolicy.fromAwsManagedPolicyName("CloudWatchLogsFullAccess"),
-        ],
-      });
-      executionRole.addToPolicy(this.modelIamHelper.logStatement);
-      executionRole.addToPolicy(this.modelIamHelper.s3Statement);
-      executionRole.addToPolicy(this.modelIamHelper.endpointStatement);
-      executionRole.addToPolicy(this.modelIamHelper.bedrockStatement);
-      executionRole.addToPolicy(this.modelIamHelper.stsStatement);
-      executionRole.addToPolicy(this.modelIamHelper.ecrStatement);
-      executionRole.addToPolicy(this.modelIamHelper.llmStatement);
-
-      this.modelExecutionRole = executionRole;
-
-      if (props.config.knowledgeBase.enabled && props.config.knowledgeBase.knowledgeBaseType.intelliAgentKb.enabled) {
-
-        // Check if props.config.model.embeddingsModels includes a model with the name 'bce-embedding-and-bge-reranker'
-        if (props.config.model.embeddingsModels.some(model => model.name === 'bce-embedding-and-bge-reranker')) {
-          // Create the resource
-          let embeddingAndRerankerModelResources = this.deployEmbeddingAndRerankerEndpoint(props);
-          this.defaultEmbeddingModelName = embeddingAndRerankerModelResources.endpoint.endpointName ?? "";
-        }
+    } else if (props.config.model.embeddingsModels[0].provider === "sagemaker") {
+      // Initialize SageMaker-specific configurations
+      this.initializeSageMakerConfig();
+
+      // Set up embedding model if it's the BCE+BGE model
+      if (props.config.model.embeddingsModels.some(model => model.name === 'bce-embedding-and-bge-reranker')) {
+        const embeddingAndRerankerModelResources = this.deployEmbeddingAndRerankerEndpoint(props);
+        this.defaultEmbeddingModelName = embeddingAndRerankerModelResources.endpoint.endpointName ?? "";
+      }
+    }
 
-        if (props.config.knowledgeBase.knowledgeBaseType.intelliAgentKb.knowledgeBaseModel.enabled) {
-          let knowledgeBaseModelResources = this.deployKnowledgeBaseEndpoint(props);
-          // this.createKnowledgeBaseEndpointScaling(knowledgeBaseModelResources.endpoint);
-          this.defaultKnowledgeBaseModelName = knowledgeBaseModelResources.endpoint.endpointName ?? "";
-        }
+    // Handle knowledge base setup separately
+    if (props.config.knowledgeBase.enabled &&
+      props.config.knowledgeBase.knowledgeBaseType.intelliAgentKb.enabled &&
+      props.config.knowledgeBase.knowledgeBaseType.intelliAgentKb.knowledgeBaseModel.enabled) {
+
+      // Initialize SageMaker config if not already done
+      if (!this.modelExecutionRole) {
+        this.initializeSageMakerConfig();
       }
+
+      // Deploy knowledge base model if enabled
+      const knowledgeBaseModelResources = this.deployKnowledgeBaseEndpoint(props);
+      this.defaultKnowledgeBaseModelName = knowledgeBaseModelResources.endpoint.endpointName ?? "";
     }
 
     if (props.config.chat.useOpenSourceLLM) {
@@ -384,5 +361,34 @@ export class ModelConstruct extends NestedStack implements ModelConstructOutputs
 
   }
 
+  private initializeSageMakerConfig() {
+    this.modelVariantName = "variantProd";
+
+    const isChinaRegion = this.modelRegion === "cn-north-1" || this.modelRegion === "cn-northwest-1";
+    this.modelImageUrlDomain = isChinaRegion ? ".amazonaws.com.cn/" : ".amazonaws.com/";
+    this.modelPublicEcrAccount = isChinaRegion ? "727897471807.dkr.ecr." : "763104351884.dkr.ecr.";
+
+    // Create IAM execution role
+    const executionRole = new iam.Role(this, "intelli-agent-endpoint-execution-role", {
+      assumedBy: new iam.ServicePrincipal("sagemaker.amazonaws.com"),
+      managedPolicies: [
+        iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonSageMakerFullAccess"),
+        iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonS3FullAccess"),
+        iam.ManagedPolicy.fromAwsManagedPolicyName("CloudWatchLogsFullAccess"),
+      ],
+    });
+
+    // Add required policies
+    executionRole.addToPolicy(this.modelIamHelper.logStatement);
+    executionRole.addToPolicy(this.modelIamHelper.s3Statement);
+    executionRole.addToPolicy(this.modelIamHelper.endpointStatement);
+    executionRole.addToPolicy(this.modelIamHelper.bedrockStatement);
+    executionRole.addToPolicy(this.modelIamHelper.stsStatement);
+    executionRole.addToPolicy(this.modelIamHelper.ecrStatement);
+    executionRole.addToPolicy(this.modelIamHelper.llmStatement);
+
+    this.modelExecutionRole = executionRole;
+  }
+
 }