Changing model name

src/graph.py

@@ -17,7 +17,7 @@ import asyncio
 load_dotenv()
 
 llm = ChatOpenAI(
-    model="llama-3.3-70b-versatile",
+    model="openai/gpt-oss-120b",
     openai_api_key=os.getenv("GROQ_API_KEY"),
     openai_api_base="https://api.groq.com/openai/v1",
     temperature=0,