Update app.py

app.py

@@ -18,7 +18,7 @@ if "HUGGINGFACEHUB_API_TOKEN" not in os.environ:
 
 # --- LLM and Template Configuration ---
 llm = HuggingFaceEndpoint(
-    repo_id="meta-llama/Llama-3.2-3B-Instruct",
+    repo_id="google/gemma-2-2b-it",
     temperature=0.7,
     top_p=0.9,
     max_new_tokens=1024,