Update app.py

app.py

@@ -18,7 +18,7 @@ DB_FAISS_PATH = 'vectorstore/db_faiss'
 # Load the model of choice
 def load_llm():
     llm = CTransformers(
-        model="Phind-CodeLlama-34B-v1",
+        model="meta-llama/Llama-2-7b",
         model_type="llama",
         max_new_tokens=512,
         temperature=0.5