Update app.py

app.py

@@ -161,7 +161,7 @@ def main():
     # Initialize session state
     if 'vector_store' not in st.session_state:
         st.session_state.vector_store = create_vector_store(repo_data)
-        st.session_state.llm = Ollama(model="llama3.2", temperature=0.7)
+        st.session_state.llm = Ollama(model="llama3.2:1b", temperature=0.7)
         st.session_state.graph = build_graph()
 
     # Question input