diff --git a/camel/model_backend.py b/camel/model_backend.py
index 9b292d98..d5b8baa8 100644
--- a/camel/model_backend.py
+++ b/camel/model_backend.py
@@ -63,6 +63,7 @@ class OpenAIModel(ModelBackend):
             "gpt-4": 8192,
             "gpt-4-0613": 8192,
             "gpt-4-32k": 32768,
+            "gpt-4-1106-preview": 128000,
         }
         num_max_token = num_max_token_map[self.model_type.value]
         num_max_completion_tokens = num_max_token - num_prompt_tokens