letta-ai/letta

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

About the project

Letta is a platform for building stateful AI agents whose memory, identity, and conversations persist so they can learn and improve over time. It is used through applications such as its desktop and web interfaces, communication channels, cloud service, and agent SDK, with the catalogue providing an instruction for working with it.

Latest release 0.16.8 — v0.16.8 · 14 May 2026

These files are letta-ai/letta's own configuration. They tell Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.

24,626Stars on the repository
1Files it configures its agents with
708Tokens loaded in every session
2Agents configured

Instructions