Update app.py

app.py

@@ -20,7 +20,7 @@ def chat_with_o3(user_input, history=None):
     messages.append({"role": "user", "content": user_input})
 
     stream = client.chat.completions.create(
-        model="deepseek-ai/DeepSeek-R1-Distill-Qwen-32B", 
+        model="deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B", 
         messages=messages, 
         temperature=0.5,
         max_tokens=2048,