llm.py

import os

from dotenv import load_dotenv
from langchain_openai import ChatOpenAI, OpenAIEmbeddings

load_dotenv()

gpt3 = ChatOpenAI(model='gpt-3.5-turbo-0125', openai_api_key=os.environ['OPENAI_KEY'])
embedder = OpenAIEmbeddings(model='text-embedding-ada-002', openai_api_key=os.environ['OPENAI_KEY'])