Letta vs Weights & Biases

FeatureLettaWeights & Biases
CategoryAI Agent FrameworksMLOps
PricingFree (open-source) + CloudFree + Teams $50/mo
GitHub Stars13,0009,000
PlatformsLinux, macOS, DockerLinux, macOS, Windows, Web
Features
  • ✓ Long-term memory
  • ✓ Stateful agents
  • ✓ Tool use
  • ✓ Multi-model
  • ✓ Self-editing memory
  • ✓ Experiment tracking
  • ✓ Model registry
  • ✓ Sweeps
  • ✓ Reports
  • ✓ Artifacts
Tags
memorystatefulagentsopen-source
mlopstrackingexperimentsmonitoring