Update app.py

app.py

@@ -42,7 +42,7 @@ def predict(system_msg, inputs, top_p, temperature, chat_counter, chatbot=[], hi
     temp["content"] = inputs
     messages.append(temp)
   
-    payload = {"model": "gpt-3.5-turbo", "messages": messages, "temperature" : 0.5, "top_p": 1.0, "n" : 1, "stream": True, "presence_penalty":0, "frequency_penalty":0,}
+    payload = {"model": "gpt-4", "messages": messages, "temperature" : 0.5, "top_p": 1.0, "n" : 1, "stream": True, "presence_penalty":0, "frequency_penalty":0,}
 
     chat_counter+=1