Update app.py

app.py

@@ -33,7 +33,8 @@ def respond(
         stream=True,
         temperature=temperature,
         top_p=top_p,
-        presence_penalty=1.1
+        presence_penalty=1.1,
+        stop=["<|im_end|>"]
     ):
         token = message.choices[0].delta.content