diff --git a/plugins/genai/agent-langgraph/README.md b/plugins/genai/agent-langgraph/README.md
index 0a685b5..4a1cdff 100644
--- a/plugins/genai/agent-langgraph/README.md
+++ b/plugins/genai/agent-langgraph/README.md
@@ -53,4 +53,5 @@ genai:
         openai:
           apiKey: ${OPENAI_API_KEY} # (Required) OpenAI model name
           modelName: 'gpt-3.5-turbo-instruct' # (Optional) OpenAI model name
+          baseUrl: ${OPENAI_API_BASE_URL} # (Optional) URL for OpenAI API endpoint
 ```
diff --git a/plugins/genai/agent-langgraph/config.d.ts b/plugins/genai/agent-langgraph/config.d.ts
index 2765904..c3ede1a 100644
--- a/plugins/genai/agent-langgraph/config.d.ts
+++ b/plugins/genai/agent-langgraph/config.d.ts
@@ -59,6 +59,10 @@ export interface Config {
              * (Optional) Name of the OpenAI model to use
              */
             modelName?: string;
+            /**
+             * (Optional) Base URL of the OpenAI API
+             */
+            baseUrl?: string;
           };
         };
       };
diff --git a/plugins/genai/agent-langgraph/src/LangGraphReactAgentType.ts b/plugins/genai/agent-langgraph/src/LangGraphReactAgentType.ts
index 30364a5..3ed0470 100644
--- a/plugins/genai/agent-langgraph/src/LangGraphReactAgentType.ts
+++ b/plugins/genai/agent-langgraph/src/LangGraphReactAgentType.ts
@@ -84,8 +84,10 @@ export class LangGraphReactAgentType implements AgentType {
       agentModel =
         LangGraphReactAgentType.createBedrockModel(agentLangGraphConfig);
     } else if (agentLangGraphConfig.openai) {
-      agentModel =
-        LangGraphReactAgentType.createOpenAIModel(agentLangGraphConfig);
+      agentModel = LangGraphReactAgentType.createOpenAIModel(
+        agentLangGraphConfig,
+        logger,
+      );
     } else {
       throw new Error('No agent model configured');
     }
@@ -133,10 +135,22 @@ export class LangGraphReactAgentType implements AgentType {
     });
   }
 
-  private static createOpenAIModel(config: LangGraphAgentConfig) {
+  private static createOpenAIModel(
+    config: LangGraphAgentConfig,
+    logger: LoggerService,
+  ) {
     const { modelName, apiKey } = config.openai!;
 
+    const baseUrl = config.openai?.baseUrl ?? 'https://api.openai.com/v1';
+
+    logger.info(
+      `Instantiating ChatOpenAI model '${modelName}' using baseUrl '${baseUrl}'`,
+    );
+
     return new ChatOpenAI({
+      configuration: {
+        baseURL: baseUrl,
+      },
       apiKey: apiKey,
       streaming: true,
       modelName: modelName,
diff --git a/plugins/genai/agent-langgraph/src/config/config.ts b/plugins/genai/agent-langgraph/src/config/config.ts
index 4ac40b8..6a404f7 100644
--- a/plugins/genai/agent-langgraph/src/config/config.ts
+++ b/plugins/genai/agent-langgraph/src/config/config.ts
@@ -87,5 +87,6 @@ export function readLangGraphAgentOpenAIConfig(
   return {
     apiKey: config.getString('apiKey'),
     modelName: config.getOptionalString('modelName'),
+    baseUrl: config.getOptionalString('baseUrl'),
   };
 }
diff --git a/plugins/genai/agent-langgraph/src/config/types.ts b/plugins/genai/agent-langgraph/src/config/types.ts
index de9a712..f4fd612 100644
--- a/plugins/genai/agent-langgraph/src/config/types.ts
+++ b/plugins/genai/agent-langgraph/src/config/types.ts
@@ -39,4 +39,5 @@ export interface LangGraphAgentBedrockConfig {
 export interface LangGraphAgentOpenAIConfig {
   apiKey: string;
   modelName?: string;
+  baseUrl?: string;
 }