From 65308da233f2a52ed6d5555fed358ba5a6f567ac Mon Sep 17 00:00:00 2001
From: Erick Friis <erick@langchain.dev>
Date: Tue, 3 Dec 2024 09:53:00 -0800
Subject: [PATCH] openai: dont populate logit_bias if None

---
 libs/partners/openai/langchain_openai/llms/base.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/partners/openai/langchain_openai/llms/base.py b/libs/partners/openai/langchain_openai/llms/base.py
index dc5dd67099b08..b910f2e404dd8 100644
--- a/libs/partners/openai/langchain_openai/llms/base.py
+++ b/libs/partners/openai/langchain_openai/llms/base.py
@@ -205,11 +205,13 @@ def _default_params(self) -> Dict[str, Any]:
             "frequency_penalty": self.frequency_penalty,
             "presence_penalty": self.presence_penalty,
             "n": self.n,
-            "logit_bias": self.logit_bias,
             "seed": self.seed,
             "logprobs": self.logprobs,
         }
 
+        if self.logit_bias is not None:
+            normal_params["logit_bias"] = self.logit_bias
+
         if self.max_tokens is not None:
             normal_params["max_tokens"] = self.max_tokens