Update app.py

app.py

@@ -64,7 +64,7 @@ def extract_data(email,function_descriptions):
     message = [{"role": "user", "content": prompt}]
     
     response = openai.ChatCompletion.create(
-        model="gpt-4-0613",
+        model="gpt-3.5-turbo-0613",
         messages=message,
         functions = function_descriptions,
         function_call="auto"