Hearth
Bake your knowledge into a model you own. It answers what's yours, refuses everything else, and never leaves your control.
A sovereign agent your security team can actually sign off on.
Rented AI is brilliant and forgetful. It loses your context when the chat ends, invents an answer when it doesn't know one, and routes your data through someone else's servers. Hearth is the opposite — a compact expert, baked on your own knowledge, running on infrastructure you control.
Not a chatbot. Not a wrapper. Not a subscription to someone else's brain.
The three levels of agent capability.
A tool is something the agent calls. A skill is something the agent carries. An instinct is something the agent has become.
Skills make agents useful — but they're portable. They can be copied, exported, leaked, or quietly reimplemented. When the skill is your moat, portability becomes risk: your advantage sits beside the agent — and anything beside the agent can walk away.
Hearth bakes your most valuable capability into the agent itself — a protected pattern of knowing, not a file to copy or a prompt to steal. From portable recipes to protected ways of knowing.
Your knowledge never leaves your control.
It trains only your agent — never a vendor's model. It runs in your cloud, your private VPC, or fully air-gapped on-prem. And the same reflex that stops it inventing is the one that stops it leaking.
Most "AI memory" is a hotel — your data checks in and never leaves. This is a kitchen you own.
You're going to ask five things.
Here are the honest answers, before you have to ask.
Grounding isn't a feature.
It's the security model.
An agent that only speaks from what it legitimately holds — and asks you for the rest — cannot confabulate and cannot leak. The property that makes it trustworthy is the same one that makes it secure. One mechanism, two guarantees, auditable by design.
Deploy it your way.
The grounding and the sovereignty stay constant. You choose where it lives.
Managed
We host and operate the bake and serving. Fastest to value — you bring the knowledge, we run the kitchen.
Private
Runs inside your own cloud account or VPC. Your data never crosses your boundary; we operate within it.
On-Prem · Sovereign
Fully on your hardware, air-gapped if you need it. Nothing leaves the building — built for regulated and defense environments.
Same grounding. Same sovereignty. Same honest numbers — wherever it runs.
Model-agnostic by design. You're never locked in.
The model stays replaceable. Your baked knowledge is the continuity.
Measured, not claimed.
Built on five published research papers and a system we run in production every day. We publish honest numbers because honest numbers are the product.
The science is public. The implementation is proprietary.
A scoped proof-of-value.
Pick one role you care about. We bake it on your knowledge and stand it up in your environment, and you watch the cost and the trust numbers move on your own tasks — not a demo.
- ✓ One baked expert, deployed where you need it
- ✓ A measured cost comparison against all-frontier, on your work
- ✓ Grounding on by default — it asks instead of inventing
- ✓ Your data stays in your boundary; no lock-in
Limited cohort — we take a handful at a time so every bake gets real attention.
We reply within two business days.
Hearth doesn't make AI louder.
It makes it yours.
The model stays replaceable. Your baked knowledge — sovereign, grounded, auditable — becomes the continuity your team builds on.
Bring your own model. We'll preheat the oven.