little change

core/llm/llm.py

@@ -14,19 +14,8 @@ class LLM:
         self.model_name = model_name
         self.logger = logger
         self.user_id = user_id
-        if self.model_name in ['deepseek-chat', 'deepseek-reasoner']:
-            self.api_key = os.getenv('DEEPSEEK_API_KEY')
-            self.api_base = os.getenv('DEEPSEEK_API_BASE')
-        else:
-            self.api_key = "key" # os.getenv('OPENAI_API_KEY')
-            # self.api_base = "https://gpt-api.hkust-gz.edu.cn/v1/chat/completions" # os.getenv('OPENAI_API_BASE')
-            self.api_key = os.getenv('OPENAI_API_KEY')
-            self.api_base = "https://api.openai.com/v1/chat/completions"
-        
-        # if not self.api_key:
-        #     raise ValueError('API key not found in environment variables')
-
-        self.client = openai.Client(api_key=self.api_key, base_url=self.api_base)
+        self.api_key = None
+        self.api_base = None
 
     def reset(self, api_key=None, api_base=None, model_name=None):
         if api_key: