OpenChatBI

Judgement

What it is

Complete system

What it does

A chat-based BI tool where users ask questions in plain language and an LLM agent writes SQL, runs it and charts the result.

Adopt it when

You want to trial text-to-SQL on your warehouse with an open LangGraph codebase.

Watch out

Version 0.3, one main author, and generated SQL needs checking.

Ready for

Experimental

Runs as

Self-hosted server

Built with

Python, LangGraph and LangChain

How established

Young: started 14 months ago, latest release v0.3.0.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: OpenChatBI → CPython → GCC → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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