Update app.py

app.py

@@ -10,7 +10,7 @@ def openai_chat(prompt, api_key):
     completions = openai.Completion.create(
         engine="text-davinci-003",
         prompt=prompt+"The following is the prompt from teacher working in canvas infrastructure",
-        max_tokens=4096,
+        max_tokens=2000,
         temperature=0.5,
         stop=[" Human:", " AI:"]
     )