Learn to build large language model applications: vector databases, langchain, fine tuning and prompt engineering. Learn more


LangChain helps developers turn your applications into context-aware, reasoning engines

Build with the momentum of the entire AI community

LangChain is open-sourced so you’re always building with the latest.


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Get started with a comprehensive open-source library of components, Personalize your application with connections to any source of knowledge or data, Get to production with a unified platform to debug, test, evaluate, and monitor your apps, Retrieval algorithms that take you beyond semantic search, turn your LLMs into reasoning engines with Agents
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