Update app.py

app.py

@@ -4,6 +4,7 @@ from PyPDF2 import PdfReader
 from langchain.text_splitter import CharacterTextSplitter, RecursiveCharacterTextSplitter
 from transformers import AutoModelForCausalLM, AutoTokenizer
 from langchain.embeddings import OpenAIEmbeddings, HuggingFaceInstructEmbeddings
+from langchain.embeddings import GPT4AllEmbeddings
 from peft import PeftModel, PeftConfig
 from transformers import AutoModelForCausalLM
 from langchain.vectorstores import FAISS, Chroma
@@ -58,7 +59,7 @@ def get_text_chunks(documents):
 def get_vectorstore(text_chunks):
     # OpenAI 임베딩 모델을 로드합니다. (Embedding models - Ada v2)
 
-    embeddings = OpenAIEmbeddings()
+    embeddings = GPT4AllEmbeddings()
     vectorstore = FAISS.from_documents(text_chunks, embeddings) # FAISS 벡터 스토어를 생성합니다.
 
     return vectorstore # 생성된 벡터 스토어를 반환합니다.