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letta

Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.

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Letta is a platform for building stateful agents—AI agents with advanced memory that can learn and self-improve over time. It is structured as an agent framework and ships an agents.md file.

Reach for it when you need agents that persist state and memory across interactions rather than staying stateless.

Use it to

  • Build stateful LLM agents
  • Add persistent memory to agents
  • Create self-improving agent workflows
  • Prototype long-running agent applications

For Developers building LLM-based agent applications

Role
agent-framework
Licence
Apache-2.0
Forks
2,624
Last push
2026-09-10
Latest release
0.1.6 · 2023-10-26
topicsllmagent-frameworkai-agentsmemorystateful-agents