modify model name

app.py

@@ -20,7 +20,7 @@ def chat(user_input, max_tokens=11264):
     ]
 
     response = client.chat.completions.create(
-        model="Ling-lite-1.5-250604",
+        model="Bailing-Lite-20250220",
         messages=messages_template,
         max_tokens=max_tokens,
         temperature=0.01,