LLM WORLD
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LangChain's first release

LangChain · · Agent

Harrison Chase published the first version of LangChain as a small Python package for chaining LLM calls, prompt templates and external tools.

Why it matters

The first widely adopted framework for wiring a language model to tools, memory and multi-step control flow. Almost every 2023 agent experiment, including AutoGPT and BabyAGI, was built on or against it.

This is LLM World's historical reading, not a claim by LangChain. The facts above and the sources below are what it rests on.

Sources

Record status: partly verified · confidence 70/100

Recorded at MONTH precision because that is the precision the readable evidence supports: Wikipedia states 'LangChain was launched in October 2022', and LangChain's own blog says only 'fall of 2022'. Its creator gives the exact day — 'on October 24th of 2022, I released the first version' — but only on x.com, which blocks automated fetching, so no tool here can re-read it. The day is probably right; it is not recorded because it cannot be checked.