The Harness
The scaffolding around a model matters as much as the model. Ours decides what the model sees, what it does, and when to ask for help, so a small model behaves like a capable one.
A brief history of becomingLife, in a little light.
A poetic journey told in light: a cell divides, life swims and finds land, an ancestral primate rises, a baby grows, and a human creates a small companion. The dots become the name sancts.
Private by nature. Human by design.
Intelligence
that stays yours.
A privacy-first AI companion, built for real conversation. It lives on your device, remembers what matters, and never needs to know more than you tell it.
Get early access01Why we're here
Some things
should stay
close to you.
Most AI asks you to send your life somewhere else. We're building the opposite: a companion small enough to live with you and capable enough to talk like it means it.
Your device. Your stories. Your space.
A little intelligence. Held close.
02The Engine
Small by design.
Deep by nature.
The ideas we're building on.
A little intelligence, thoughtfully held.
Memory that grows with you
It starts nearly blank and builds itself from your conversations. It's not a log but a living map of what matters to you and why things connect.
State, not just context
It tracks where you are in a conversation, a task, or a day, so it picks up threads instead of starting over.
Compression
Long histories get distilled to what's useful, so conversations can run on without the model drowning.
Knows what it doesn't know
Trained to say "I'm not sure" instead of guessing, and to reach outward only when it has to.
Built for the edge
Small, fast, tuned for the hardware you already own.
Designed to live on your device.
There is a part of you that only appears in conversation.
03Field notes
Discoveries.
A few things found along the way.
We'll open these up in time.
01
On the quiet between words
Something we noticed that changed how we build.
Not yet open02
Why small things remember better
Something we noticed that changed how we build.
Not yet open03
A map that draws itself
Something we noticed that changed how we build.
Not yet open04
The art of not answering
Something we noticed that changed how we build.
Not yet openResearch
Thoughtful work takes its time.
Ours will have a home here.
Coming soon
Be early.
We're making room for something different.
Come be a part of it.
The conversation starts here
hello@sancts.app