Agent frameworks · Memory & state

Letta

Platform for stateful agents with long-term memory (formerly MemGPT).

Facts

Website: docs.letta.com
Repository: letta-ai/letta
Open source: Yes, Apache-2.0 Verified · Source
Pricing: Open core: Free tier · $20 / month (Pro, cloud) Sourced · Source
Platforms: macOS, Windows, Linux Sourced · Source
Added · checked: 2026-10-13 · 2026-10-13
Sponsored: No. Nobody paid for this listing or its position.

Works with local models

Ollama: Yes Verified · Source
llama.cpp: Not yet confirmed Not yet measured
LM Studio: Yes Verified · Source
OpenAI-compatible: Not yet confirmed Not yet measured
MCP: Not yet confirmed Not yet measured

Summary: Our one-line paraphrase of the official description. Source.
Logo: trademark of its owner, used only to identify Letta. Source (favicon svg): https://docs.letta.com/favicon.svg, checked 2026-10-13.
Machine-readable: Markdown · JSON