# Letta

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

Canonical: https://thelocalbench.com/tools/letta · Data as of 2026-10-12 · The Local Bench (thelocalbench.com), data as of 2026-10-12, CC BY 4.0

Flags: [verified] checked against primary source · [sourced] cited · [estimate] formula · [sample] placeholder

- Category: Agent frameworks / Memory & state
- Website: https://docs.letta.com/
- Repository: https://github.com/letta-ai/letta
- Open source: yes, Apache-2.0 [verified] https://github.com/letta-ai/letta/blob/HEAD/LICENSE
- Pricing: open-core, starting $0, $20 / month (Pro, cloud) [sourced] https://www.letta.com/pricing
- Platforms: macOS, Windows, Linux [sourced] https://github.com/letta-ai/letta#readme
- Added 2026-10-13, last verified 2026-10-13
- Sponsored: no

## Works with local models

| Integration | Status | Flag | Source |
|---|---|---|---|
| Ollama | yes | [verified] | https://docs.letta.com/guides/server/providers/ollama |
| llama.cpp | not yet confirmed | [not_measured] |  |
| LM Studio | yes | [verified] | https://docs.letta.com/guides/server/providers/lmstudio |
| OpenAI-compatible | not yet confirmed | [not_measured] |  |
| MCP | not yet confirmed | [not_measured] |  |

JSON: https://thelocalbench.com/api/v1/tools/letta.json

Logo: trademark of its owner, shown to identify the tool (source: favicon-svg, https://docs.letta.com/favicon.svg).