Update app.py

app.py

@@ -14,7 +14,7 @@ login(token=token)
 
 
 def AImodel(text,questionText):
-    model_name = "mistralai/Mistral-Nemo-Instruct-2407"
+    model_name = "meta-llama/Llama-2-7b-chat-hf"
     
 
     # a) Get predictions