Update langgraph_nodes.py

langgraph_nodes.py

@@ -218,7 +218,7 @@ Analyze this review:"""
                 {"role": "system", "content": system_prompt},
                 {"role": "user", "content": user_prompt}
             ],
-            model="mistralai/Mistral-7B-Instruct-v0.3",
+            model="meta-llama/Llama-3.2-3B-Instruct",
             max_tokens=200,
             temperature=0.1
         )