Letta
by Letta Inc. · open-source · Last verified 2026-03-17
Framework for building stateful AI agents with long-term memory management, formerly known as MemGPT. Provides memory tiers, self-editing memory, and persistent agent state across conversations.
https://www.letta.com ↗C
C—Below Average
Adoption: C+Quality: AFreshness: ACitations: C+Engagement: F
Specifications
- License
- Apache-2.0
- Pricing
- open-source
- Capabilities
- long-term-memory, self-editing-memory, stateful-agents, memory-tiers, agent-persistence
- Integrations
- openai, anthropic, groq
- Use Cases
- persistent-assistants, long-running-agents, personalized-ai, memory-augmented-generation
- API Available
- Yes
- SDK Languages
- python
- Deployment
- self-hosted, letta-cloud
- Rate Limits
- N/A (open-source)
- Data Privacy
- Self-hosted by default; Letta Cloud available for managed hosting
- Tags
- memory-management, stateful-agents, long-term-memory, memgpt
- Added
- 2026-03-17
- Completeness
- 100%
Index Score
49Adoption
50
Quality
80
Freshness
85
Citations
52
Engagement
0