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Description
LangChain is one of the most popular and comprehensive frameworks for building applications powered by large language models (LLMs). It allows you to create complex AI agents that can use tools, access vector databases, maintain conversational memory, and execute reasoning chains. It offers integrations with all major LLM providers such as OpenAI, Anthropic, Google, and more. Supports Python and JavaScript/TypeScript. Includes LangSmith for debugging and monitoring, and LangServe for deployment. Ideal for developers who want full control over their agents. The community is very active with thousands of contributors. Extensive documentation and examples for use cases such as chatbots, RAG systems, autonomous agents, and more.
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