Update app/routes/chat_api.py

app/routes/chat_api.py

@@ -140,7 +140,7 @@ async def chat_completions(fastapi_request: Request, request: OpenAIRequest, api
             PROJECT_ID = rotated_project_id
             LOCATION = "global" # Fixed as per user confirmation
             VERTEX_AI_OPENAI_ENDPOINT_URL = (
-                f"https://us-central1-aiplatform.googleapis.com/v1beta1/"
+                f"https://aiplatform.googleapis.com/v1beta1/"
                 f"projects/{PROJECT_ID}/locations/{LOCATION}/endpoints/openapi"
             )
             # base_model_name is already extracted (e.g., "gemini-1.5-pro-exp-v1")