Update app.py

app.py

@@ -13,7 +13,7 @@ if not HF_TOKEN:
 # Modelos disponíveis via API (testados e funcionais)
 MODELS = {
     "phi3-mini": "microsoft/Phi-3-mini-4k-instruct",
-    "llama3.1-8b": "meta-llama/Llama-3.1-8B-Instruct",
+    "llama3.1-3b": "meta-llama/Llama-3.2-3B-Instruct",
     "mistral-7b": "mistralai/Mistral-7B-Instruct-v0.3",
     "zephyr7b": "HuggingFaceH4/zephyr-7b-beta",
 }