diff --git a/site-packages/devchat/openai/openai_chat.py b/site-packages/devchat/openai/openai_chat.py
index 5aed702..81a424d 100644
--- a/site-packages/devchat/openai/openai_chat.py
+++ b/site-packages/devchat/openai/openai_chat.py
@@ -7,7 +7,6 @@ from devchat.chat import Chat
 from devchat.utils import get_user_info, user_id
 from .openai_message import OpenAIMessage
 from .openai_prompt import OpenAIPrompt
-from .minimax_chat import chat_completion, stream_chat_completion
 
 
 class OpenAIChatParameters(BaseModel, extra='ignore'):
@@ -69,9 +68,6 @@ class OpenAIChat(Chat):
             config_params['function_call'] = 'auto'
         config_params['stream'] = False
 
-        if config_params['model'].startswith('abab'):
-            return chat_completion(prompt.messages, config_params)
-
         client = openai.OpenAI(
             api_key=os.environ.get("OPENAI_API_KEY", None),
             base_url=os.environ.get("OPENAI_API_BASE", None)
@@ -93,9 +89,6 @@ class OpenAIChat(Chat):
             config_params['function_call'] = 'auto'
         config_params['stream'] = True
 
-        if config_params['model'].startswith('abab'):
-            return stream_chat_completion(prompt.messages, config_params)
-
         client = openai.OpenAI(
             api_key=os.environ.get("OPENAI_API_KEY", None),
             base_url=os.environ.get("OPENAI_API_BASE", None)