LangChain

LangChain
Developer(s)Harrison Chase
Initial releaseOctober 2022
Stable release
1.4.6 / 14 October 2026; 16 days ago (14 October 2026)
Repositorygithub.com/langchain-ai/langchain
Written inPython and JavaScript
TypeSoftware framework for large language model application development
LicenseMIT License
WebsiteLangChain.com

LangChain is a software that enables the easier use Large language model (LLM) in different applications. It helps connect language models to tasks, including reading and summarizing documents, creating chatbots, and analyzing code.[better source needed]

History

LangChain was started in October 2022 as an open-source project by Harrison Chase. It quickly became popular, with many contributors and online discussions. In 2023, the project raised over $30 million in funding. Later that year, it introduced LangChain Expression Language (LCEL) for defining actions and LangServe for hosting LCEL code as an API.

References

  1. ↑ "Release 1.4.6". 14 October 2026. Retrieved 15 October 2026.
  2. ↑ Buniatyan, Davit (2023). "Code Understanding Using LangChain". Activeloop.
  3. ↑ Griffith, Erin; Metz, Cade (2023-03-14). "'Let 1,000 Flowers Bloom': A.I. Funding Frenzy Escalates". The New York Times. ISSN 0362-4331. Archived from the original on 2023-04-18. Retrieved 2023-04-18.
  4. ↑ Auffarth, Ben (2023). Generative AI with LangChain. Birmingham: Packt Publishing. p. 83. ISBN 9781835083468.