Private AI · Self-hosted · EU

Your data can't go to OpenAI.Your team still needs AI.I build the stack in between.

Private AI on your own servers — nothing leaves the building unless you decide it does. I'm Stéphane. I've run exactly this stack in production for two years: local models for the sensitive work, frontier models where you allow them, one router enforcing the line. Now I build it for teams like yours.

Runs on your hardwareEU-BASEDYou own all of it
Stéphane Lepain

Stéphane Lepain · builder & operator

01The Bind

You need AI. Your data can't leave your walls.

You want what AI gives you. You just can't hand your data to a stranger to get it:

  • You want the speed and leverage AI brings your team.
  • But your data is too sensitive to ship to someone else's cloud.
  • And “trust us, it's encrypted” doesn't survive a compliance review.

Healthcare, legal, finance — the names change, the bind doesn't. The moment real client data is on the line, sending it somewhere else stops being an option.

02Not a Slide Deck

This isn't theory. It's my Tuesday.

For two years I've run a full self-hosted AI stack on my own hardware: chat, local and commercial models behind one router, document processing, monitoring, automated backups. It breaks sometimes — and it comes back in under two hours, because that's tested, not claimed.

2+ years
in production, 24/7, on my own hardware
30+ services
independently restartable, monitored
<2h
bare-metal recovery, rehearsed, not promised
1 router
every AI call routed, logged, and costed
Read how it's built
03What You Get

AI that's actually yours.

Runs on your own hardware

Your private AI lives on your servers, in your building. Sensitive data never touches a third party — not because a contract says so, but because there's no third party in the loop.

You draw the line

Sensitive work stays on local models — those bytes never leave. Where you allow frontier models, the router sends the minimum necessary, under no-training terms, with every call logged and costed. You always know what went where. Policy, not promises.

Set up once, keeps running

It looks after itself: monitored, backed up, documented. And if something breaks, it comes back fast — you're never stuck in a support queue in another timezone.

One engineer, start to finish

You talk to the person who builds it. That's me. No account managers, no sales maze, no game of telephone between you and the work.

04Who This Is For

If your data can't leave the building, you're my buyer.

Healthcare & MedTech

Patient data and clinical documents that can't transit US providers under GDPR or sector rules. Private AI on EU hardware, with the boundary enforced in the router — defensible in front of your DPO.

Legal & Professional Services

Privileged client documents, diligence files, regulatory filings. Privilege survives because the data never leaves your perimeter.

Financial Services & Fintech

NIS2, DORA, EBA outsourcing guidelines. Cost-predictable for CFO sign-off, auditable for the regulator, no per-token surprises mid-quarter.

Not on this list? Public sector, defence-adjacent suppliers, pharma, research groups — same bind, same fix. Tell me what you're building →

05On Purpose

The stuff I left out deliberately.

  • No monthly bill that climbs with every user. You buy the build, not a meter.
  • No "contact sales" runaround. You talk to an engineer, not a funnel.
  • No lock-in. You can run everything without me the day it's delivered.
  • Not a ChatGPT login. If a public AI seat covers your need, I'll tell you so — it's cheaper for you and better for my sleep.
Stéphane Lepain

The person behind the stack.

By day I work in infrastructure in the aviation industry. Two years ago I started building a fully private AI stack on my own hardware, on my own time, to answer one question: how much serious AI can a regulated team run without surrendering control of its data?

The answer: far more than vendors want you to believe — and two years of production scars taught me exactly where the honest limits are. That's what you're hiring.

More about me
06Let's Talk

Tell me what you're trying to do.

I'll tell you honestly whether I can help — and if I can't, I'll point you somewhere that can. I reply within one business day.

Talk to me — I don't bite

Remote-first, EU · Scoped per engagement · One engagement at a time