LangChain vs Vercel AI SDK

FeatureLangChainVercel AI SDK
CategoryAI Agent FrameworksAI Development
PricingFree + LangSmith paidFree (open-source)
GitHub Stars98,00012,000
PlatformsmacOS, Linux, WindowsWeb
Features
  • ✓ Chain composition
  • ✓ RAG pipelines
  • ✓ Agent toolkits
  • ✓ Memory systems
  • ✓ Streaming
  • ✓ Multi-model
  • ✓ LangGraph
  • ✓ React hooks
  • ✓ Streaming
  • ✓ Multi-model
  • ✓ Tool calling
  • ✓ Structured output
  • ✓ Edge runtime
Tags
open-sourceframeworkpythonjavascriptragchains
open-sourcetypescriptreactstreamingsdk