LangChain AI
Build an application combining LLM reasoning with real-data retrieval and logic workflows.
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LangChain is a developer-oriented framework and toolkit that helps build applications using large language models (LLMs). It provides abstractions for chaining together model calls, integrating external data sources, managing state and context, and creating complex agent-based workflows. This enables developers to build advanced AI-driven applications — such as retrieval-augmented generation (RAG) systems, chatbots connected to real data, automated workflows, or multi-step reasoning agents — without starting from scratch.
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