If you're worried about getting charged by OpenAI on every search query and to add each new document, you could look at some open source tools, Marqo (github.co

If you're worried about getting charged by OpenAI on every search query and to add each new document, you could look at some open source tools, Marqo (github.com/marqo-ai/marqo) would work for this, and is entirely free and end-to-end