Update app.py

app.py

@@ -35,7 +35,8 @@ models = {
         "Qwen/Qwen2.5-72B-Instruct",
         "mistralai/Mistral-Nemo-Instruct-2407",
         "tiiuae/falcon-7b-instruct",
-        "nvidia/Llama-3.1-Nemotron-70B-Instruct-HF"
+        "nvidia/Llama-3.1-Nemotron-70B-Instruct-HF",
+        "google/gemma-3-4b-it"
     ]
 }