Letta vs Chainlit

FeatureLettaChainlit
CategoryAI Agent FrameworksChat Interfaces
PricingFree (open-source) + CloudFree (open-source)
GitHub Stars13,0008,000
PlatformsLinux, macOS, DockerLinux, macOS, Windows
Features
  • ✓ Long-term memory
  • ✓ Stateful agents
  • ✓ Tool use
  • ✓ Multi-model
  • ✓ Self-editing memory
  • ✓ Chat UI
  • ✓ File upload
  • ✓ Streaming
  • ✓ Authentication
  • ✓ Multi-step display
Tags
memorystatefulagentsopen-source
chatuipythonopen-source