diff --git a/rag/llm/chat_model.py b/rag/llm/chat_model.py
index 4d843c85f..a931360db 100644
--- a/rag/llm/chat_model.py
+++ b/rag/llm/chat_model.py
@@ -946,8 +946,6 @@ class OpenAI_APIChat(Base):
     def __init__(self, key, model_name, base_url):
         if not base_url:
             raise ValueError("url cannot be None")
-        if base_url.split("/")[-1] != "v1":
-            base_url = os.path.join(base_url, "v1")
         model_name = model_name.split("___")[0]
         super().__init__(key, model_name, base_url)