Letta is an AI research lab in San Francisco building stateful agents that remember, learn continuously, and improve over time.

Products & media

Letta Agent

Personalized agents remember prior work, learn from experience, and perform tasks through desktop and web interfaces.

Letta App Server

Self-hosted runtime exposes always-on Letta agents to local or remote applications through a WebSocket protocol.

Letta Cloud

Managed service stores agent memory and conversation state and runs agents in cloud sandboxes accessible across devices.

Letta CLI

Terminal interface runs stateful agents for coding and local tasks, with persistent memory and headless automation.

Letta Agent SDK

Developer toolkit embeds persistent agents, streaming conversations, memory, and approval workflows into applications.

Cosigns

Astasia MyersGeneral Partner at Felicis investing in enterprise technology and early-stage companies.
“We are thrilled to support Letta in their groundbreaking journey to advance multi-agent AI by building and enabling innovative memory systems”
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Team

2 people across company lists

Jobs