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Tools · Comparison

LangChain vs CrewAI

Both are automation tools. Here is what separates them.

LangChainCrewAI
What it isThe most widely used framework for building applications on language models, with tracing and evaluation alongside.A Python framework for orchestrating several agents with roles, tasks and a defined process.
CategoryAutomationAutomation
PricingFreemium · Open source · LangSmith from $39/user/moFreemium · Open source · Cloud from $99/mo
How it billsPer seatFlat monthly
Free tierYesYes
RatingNot yet ratedNot yet rated
Features
  • Python and JavaScript libraries
  • LangGraph for stateful agents
  • LangSmith tracing and evaluation
  • Very wide integration coverage
  • Large community
  • Role-based agent definition
  • Sequential and hierarchical processes
  • Tool integration
  • Open source core
  • Managed cloud deployment
What works
  • Enormous ecosystem and documentation
  • Observability tooling is genuinely good
  • Model-agnostic
  • Clear mental model for multi-agent work
  • Large community and examples
  • Free to run yourself
What does not
  • Abstractions add indirection
  • API has churned across versions
  • Easy to over-engineer with
  • Python knowledge required
  • Agent loops can run away on cost
  • Abstractions leak on complex flows

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