One understanding of you — built from your own words, owned by you — that every AI you use can read, with your permission. Not a profile. Not a login. The layer underneath.
You never re-explain yourself again. Import what you already have, let Lethe understand it with the receipts attached, and every AI you connect reads the same you.
A ChatGPT, DeepSeek or Grok export. Documents. A read-only Gmail and Calendar connection. Or just a thought you capture on the way somewhere.
Lethe derives decisions, goals, timelines and recurring problems — and pairs every claim with the exact line it came from. Names become pseudonyms before anything is stored.
Point Claude, Cursor or any MCP client at your Lethe once. It opens knowing you. Every read is on the record, scoped to what you allowed, revocable in one tap.
Lethe is the control panel between you and every AI, app and — next — device. What goes where is decided here, once. Everywhere else only obeys, and every read is written to a log you own.
Every AI you use keeps a half-right copy of you. Lethe keeps one — every claim cites the line it came from, graded blind against the source, method published. Where we lost, we published that too.
Names are replaced before anything is stored. The map back to real names never leaves your device.
Local-first and encrypted, run by a model on your own machine. No connection — not even your own AI — reads inside it.
Each connection gets exactly the slice you allowed. Every read is logged. Revoking takes one tap and is immediate.
Same 22 conversations, same model, one blind judge — Lethe, Mem0, and Zep's engine, wins and losses published together.
Aug 22, 2026 · shippedRelative dates now resolve against the moment you said them, in your timezone — and due ones come find you.
Aug 20, 2026 · measured268 claims, 22 real conversations, blind-judged — including the broken first run that said 68%.
Free while in beta. No card, no plan to pick.
Get your Lethe ID — free