Continuous memory
It doesn't reset between sessions. The thread you started weeks ago is still there, carried forward.
Now in alpha · BYOK AI companion
A BYOK AI companion that actually remembers you — across every conversation, not just this one. With eval transparency you can verify.
You keep your API key. We never hold it.
01 — The quiet problem
“I had nowhere to put it. So I just… didn't talk.”
You have something to say. The people closest to you can't always hold it — not because they don't care, but because it isn't theirs to carry.
A therapist feels like too much for what this is. And the assistants you already talk to forget you the moment the session ends. So the thing stays where it started. Unsaid.
02 — A fourth position
Not a playground. Not a character builder. Not a tool that can do anything. Something quieter — a companion that holds the thread, and is simply there when you have something to put down. The thing you didn't know you'd been missing.
03 — What it actually is
It doesn't reset between sessions. The thread you started weeks ago is still there, carried forward.
One context that travels with you across every conversation, so you never start from a blank introduction.
Move between just being there and actually working a problem through — without switching apps or personas.
Bring your own Anthropic key. You pay Anthropic directly for what you use. We never hold or proxy your key.
Doesn't drift after fifty messages. The companion you started with is the one you keep.
04 — See it remember
05 — Pricing
Alpha pricing, locked for early members. No tiers to decode — just the companion.
Sanagi · BYOK
+ your Anthropic API usage, paid directly to Anthropic.
No charge during alpha. Price shown is the planned launch rate.
06 — Questions
Alpha is opening to a small group at a time. Join the waitlist and we'll send one note when it's your turn.