Upload app.py

app.py

@@ -18,7 +18,7 @@ def gpt_response(message, history=[]):
 
     # Call OpenAI GPT-4
     response = openai.ChatCompletion.create(
-        model="gpt-4",
+        model="gpt-3.5-turbo",
         messages=messages,
         temperature=0.3,
         max_tokens=300