Update app.py

app.py

@@ -33,7 +33,7 @@ books_db = Chroma(persist_directory="./pdf_db", embedding_function=embeddings)
 books_db_client = books_db.as_retriever()
 
 # Initialize the model and tokenizer
-model_name = "nltpt/Llama-3.2-3B-Instruct"
+model_name = "unsloth/Llama-3.2-3B-Instruct"
 
 # bnb_config = transformers.BitsAndBytesConfig(
 #     load_in_4bit=True,