LangChain

Building applications with LLMs through composability. The leading LLM framework.

107.0kstars
AI FrameworksOpen SourceFreeUpdated 2026-06-06
langchainllm-frameworkrag

Advantages

  • +De facto standard for LLM application frameworks
  • +Richest ecosystem (tools, models, vector stores)
  • +LangSmith for observability

Limitations

  • -Over-abstraction makes debugging hard
  • -Frequent version changes, unstable API
  • -Too heavy for simple use cases
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