Trying to determine the best approach to essentially create an OpenAI Assistants-like chain but with the Anthropic API, while incorporating the functionality of attaching a vectorstore to each Instance that can be served with a single API call.

I’m aware Langchain is an example however have heard a lot of negative experiences coming out lately, and as this solution will be used in a production environment with 100+ daily users, I’m looking for something I know will be as reliable as possible.