Update chat_engine.py

chat_engine.py

@@ -72,9 +72,9 @@ def get_api_type(api_type):
     if model_name == 'openai-gpt-4o':
         return OpenAI(model='gpt-4o', temperature=0.7)
     elif model_name == 'openai-gpt-4-turbo':
-        return OpenAI(model='gpt-4-turbo', temperature=0.7})
+        return OpenAI(model='gpt-4-turbo', temperature=0.7)
     elif model_name == 'openai-gpt-3.5-turbo':
-        return OpenAI(model='gpt-3.5-turbo', temperature=0.7})
+        return OpenAI(model='gpt-3.5-turbo', temperature=0.7)
     elif model_name == 'claude-sonnet-3.5':
         return Anthropic(model="claude-3-5-sonnet-20240620")
     elif model_name == 'claude-opus-3':