My colleagues at Quansight released Ragna. It's pretty cool!

In the blogpost, there's a demo: you upload a pdf, ask ML model a question, it answers and shows which pages it looked at in the document. If you don't trust the output, you can double-check the doc since you have the page numbers.

Ragna currently ships with pre-built extensions for OpenAI, MosaicML, Anthropic, and local LLMs as well as the Chroma and LanceDB vector databases. And it's open source, too!