Document question-answering was one of the first and core abilities of LangChain. We're very excited to do a deep dive on it with two special guest (who know a lot more about it than we do:

PaperQA was one of the first, and one of the most popular (1.5 GitHub stars!), open source packages for doing question answering from PDFs or text files. It strives to give very good answers, with no hallucinations, by grounding responses with in-text citations. Andrew White is the author of this package, and we're excited to chat with him for an hour about this project and deep dive into the many issues and subtleties involved.

ChatBase is an end-to-end product where you can just upload a pdf or add a link to your website and get a ChatGPT-like chatbot that can answer any question on it. Then add a chat widget to your website. Yasser Elsaid is the creator of this project and we're eager to dive into everything ChatBase can do, and what it was like productionizing such an application.

LangChain Document Question-Answering Webinar