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LangChain

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The most popular framework for building LLM-powered applications

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About

LangChain is a framework for developing applications powered by language models. It provides modular components for chains, agents, retrieval, memory, and callbacks. With LangSmith for observability and LangServe for deployment, it's a comprehensive LLM development platform.

Strengths

  • Massive ecosystem & integrations
  • Comprehensive documentation
  • Active community

Limitations

  • Heavy abstraction layer
  • Breaking changes between versions
  • Can be overkill for simple use cases

Use Cases

RAG applicationsChatbotsAgent systemsData analysis

Integrations

OpenAIAnthropicHuggingFacePineconeWeaviateChromaDB

Comparisons

LangChainVSLlamaIndexLangChainVSCrewAI