Update app.py

app.py

@@ -94,7 +94,7 @@ instructions = {
 
 def get_completion_from_messages(messages, 
                                  temperature=0,
-                                 model="gpt-3.5-turbo",  
+                                 model="gpt-4",  
                                  max_tokens=2000):
     response = openai.ChatCompletion.create(
         model=model,
@@ -127,7 +127,7 @@ def format_chat_trail(message, chat_history):
 
     return prompt
 
-def get_completion(prompt, model="gpt-3.5-turbo"):
+def get_completion(prompt, model="gpt-4"):
     messages = [{'role': 'user', 'content': prompt}]
     response = openai.ChatCompletion.create(
         model=model,