change chat default (#1782)

Resolves https://github.com/hwchase17/langchain/issues/1532, resolves https://github.com/hwchase17/langchain/issues/1652.
1 year ago · b1b4a4065a
parent 08f23c95d9
commit b1b4a4065a
1 changed files with 1 additions and 1 deletions
--- a/langchain/chat_models/openai.py
+++ b/langchain/chat_models/openai.py
@ -128,7 +128,7 @@ class ChatOpenAI(BaseChatModel, BaseModel):
    """Whether to stream the results or not."""
    n: int = 1
    """Number of chat completions to generate for each prompt."""
-    max_tokens: int = 256
+    max_tokens: Optional[int] = None
    """Maximum number of tokens to generate."""
    class Config: