Instructor vs LangChain

FeatureInstructorLangChain
CategoryAI DevelopmentAI Agent Frameworks
PricingFree (open-source)Free + LangSmith paid
GitHub Stars9,00098,000
PlatformsLinux, macOS, WindowsmacOS, Linux, Windows
Features
  • ✓ Structured output
  • ✓ Pydantic models
  • ✓ Retry logic
  • ✓ Streaming
  • ✓ Multi-provider
  • ✓ Chain composition
  • ✓ RAG pipelines
  • ✓ Agent toolkits
  • ✓ Memory systems
  • ✓ Streaming
  • ✓ Multi-model
  • ✓ LangGraph
Tags
structured-outputpydanticpythonopen-source
open-sourceframeworkpythonjavascriptragchains