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Making machines that learn

We’re solving AI’s memory problem. Create agents that remember everything, learn continuously, and improve themselves over time.

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Letta Platform

Give your agents the ability to remember and learn, so they can be more like humans, and less like bots.

Real agents, in production
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AI Research

We are an open AI lab pursuing foundational research in AI memory, continual learning, and self-improvement.

Today's AI agents struggle to remember previous mistakes, and are unable to learn from new experiences. At Letta, we're building machines with real memory that can continually learn and self-improve.

Product
Jan 21, 2026

Conversations: Shared Agent Memory across Concurrent Experiences

The Conversations API allows you to build agents that can maintain shared memory across parallel experiences with users

Product
Dec 16, 2025

Letta Code: A Memory-First Coding Agent

Introducing Letta Code, a memory-first coding agent. Letta Code is the #1 model-agnostic open source agent on the leading AI coding benchmark Terminal-Bench.

Research
Dec 11, 2025

Continual Learning in Token Space

At Letta, we believe that learning in token space is the key to building AI agents that truly improve over time. Our interest in this problem is driven by a simple observation: agents that can carry their memories across model generations will outlast any single foundation model.