LlamaIndex vs Letta

FeatureLlamaIndexLetta
CategoryAI DevelopmentAI Agent Frameworks
PricingFree (open-source) + CloudFree (open-source) + Cloud
GitHub Stars38,00013,000
PlatformsLinux, macOS, WindowsLinux, macOS, Docker
Features
  • βœ“ RAG pipelines
  • βœ“ Data connectors
  • βœ“ Indexing
  • βœ“ Query engine
  • βœ“ Agent tools
  • βœ“ Long-term memory
  • βœ“ Stateful agents
  • βœ“ Tool use
  • βœ“ Multi-model
  • βœ“ Self-editing memory
Tags
ragdataindexingopen-source
memorystatefulagentsopen-source