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Letta

Verified Sep 2026

Agents with memory, by design

The MemGPT successor: an agent framework whose agents persist state and learn across sessions.

The framework from MemGPT research: agents with persistent core memory, self-editing context and long-term recall as first-class primitives. Represents the memory-centric branch of agent infrastructure, with a server runtime for stateful agents.

Who it's for

Developers building agents with persistent memory that survives across sessions and conversations.

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