Letta (formerly MemGPT)

Agent platform for persistent memory, context management, and long-running ai agents

Overview

MemGPT is the earlier name for the work now presented by Letta. Letta develops agents with persistent memory, evolving identity, and capabilities that improve through experience. The platform and research focus on memory-native agents, context management, and long-running interactions rather than one-off prompt responses.

Key features

Persistent agent memory
Context management
Agent identity and capabilities
Long-running agent interactions
Memory-focused agent research
Letta Code tooling

Use cases

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Knowledge work

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Last updated 2026-09-16