[mabcat]

It's an alternative, does a similar job, depends on/abstracts over langchain for some things. It's easier to use than langchain and you'll probably get moving much faster.

They've aimed to make a framework that starts concise and simple, has useful defaults, then lets you adjust or replace specific parts of the overall "answer questions based on a vectorized document collection" workflow as needed.

This works well overall, but some bits have kept me scratching my head for hours. Partly due to huge holes in the documentation when it comes to specifics ("plenty of examples but little documentation" another commenter wrote and I agree). Partly due to the frenetic release schedule, this project is highly active even by frothy LLM craze standards and interfaces change rapidly.

Overall recommend, LlamaIndex has helped me make good progress on my project