diff --git a/libs/partners/xai/langchain_xai/chat_models.py b/libs/partners/xai/langchain_xai/chat_models.py
index f4fb5904a9c15..255b3637e9dd5 100644
--- a/libs/partners/xai/langchain_xai/chat_models.py
+++ b/libs/partners/xai/langchain_xai/chat_models.py
@@ -267,7 +267,8 @@ class Joke(BaseModel):
 
     model_config = ConfigDict(
         populate_by_name=True,
-        extra="forbid"
+        extra="forbid",
+        json_excludes={"openai_api_key"} 
     )
 
     @property