Update app.py

app.py

@@ -178,7 +178,7 @@ custom_rag_prompt = ChatPromptTemplate.from_template(template)
 
 
 llm = ChatOpenAI(
-    model_name="hf:mistralai/Mixtral-8x7B-Instruct-v0.1",
+    model_name="hf:meta-llama/Llama-3.3-70B-Instruct",
     api_key = os.environ.get('GLHF_API_KEY'),
     base_url = 'https://glhf.chat/api/openai/v1',
     temperature=0.2)