Update app.py

app.py

@@ -21,7 +21,7 @@ BASE_DIR = os.getcwd()
 GROQ_API_KEY = os.environ.get('GROQ_API_KEY')
 
 # Set up LLM and Flux client
-llm = ChatGroq(temperature=0, model_name='llama-3.1-8b-instant', groq_api_key=groq_api_key)
+llm = ChatGroq(temperature=0, model_name='llama-3.1-8b-instant', groq_api_key=GROQ_API_KEY)
 flux_client = Client("black-forest-labs/Flux.1-schnell")
 
 def create_graph(text):