diff --git a/langchain/llms/openai.py b/langchain/llms/openai.py
index 22840dcb5b2..7f1d360c3ee 100644
--- a/langchain/llms/openai.py
+++ b/langchain/llms/openai.py
@@ -54,6 +54,8 @@ class BaseOpenAI(BaseLLM, BaseModel):
     """Batch size to use when passing multiple documents to generate."""
     request_timeout: Optional[Union[float, Tuple[float, float]]] = None
     """Timeout for requests to OpenAI completion API. Default is 600 seconds."""
+    logit_bias: Optional[Dict[str, float]] = Field(default_factory=dict)
+    """Adjust the probability of specific tokens being generated."""
 
     class Config:
         """Configuration for this pydantic object."""
@@ -109,6 +111,7 @@ class BaseOpenAI(BaseLLM, BaseModel):
             "n": self.n,
             "best_of": self.best_of,
             "request_timeout": self.request_timeout,
+            "logit_bias": self.logit_bias,
         }
         return {**normal_params, **self.model_kwargs}