// for organisations

M1K3 for Teams

Updated 2026-09-09 · By Round Tower, the makers of M1K3 — the same product, on your hardware, under your domain

Short answer: M1K3 for Teams is M1K3 for an organisation — the same on-device brains, an institutional memory, and a persona tuned to your people, running on Apple Silicon hardware you own, on your own network, under your own domain. An administrator locks the personal app's opt-in Private Cloud Compute switch off fleet-wide, so nothing leaves your building. Round Tower does not host it, cannot see it, and receives no telemetry from it. It is for the places where the data cannot leave — schools, clinics, firms, public bodies — and it is sold as a small number of fixed-scope design-partner pilots, not as a cloud subscription.

What you get

What it is not

Where it stands today

Plainly: the personal app ships now, including the one-Mac-to-your-devices serving that Teams grows from (Brain at Home, in the app today, off by default). The shared institutional memory, the administration surface, and identity for many people are being built with design partners rather than ahead of them — a pilot is how that gets built around a real organisation's needs instead of an imagined one. If you would rather wait until it is finished, that is a fair answer, and the free app is not going anywhere.

How a pilot works

  1. A conversation. What your people keep needing, where the data lives, what must never leave the building, and which Macs you have. Half an hour.
  2. A fixed scope, a fixed price. One site, your hardware, your knowledge, a few weeks. Agreed up front in writing, so there is nothing to discover later.
  3. The deployment. The brain server on your machine, your documents indexed on it, your persona and eval set written with you, your devices paired.
  4. The report. What it answered well, what it got wrong, what it cost in hardware and time, and whether it earned a place — in writing, and honest.

Round Tower is taking on a small number of design-partner pilots. Write to kevin@round-tower.ie with a line about your organisation and what you would want it to know.

Frequently asked questions

Does anything leave our network?

No. M1K3 for Teams runs on your organisation's own Apple Silicon hardware, on your own network, under your own domain. Inference, voice, embeddings, retrieval, and storage stay on machines you own. Round Tower does not host it, does not receive telemetry from it, and cannot see what it knows. The personal app's opt-in Private Cloud Compute switch — the one control that can send a single message to Apple's cloud — can be locked off by policy for your whole deployment, so the only network crossings left are the ones the app already documents: a one-time model download you approve, and a web-search tool an administrator can switch off too.

Can we just use the free app inside our organisation instead?

Yes. Internal use is a Permitted Purpose under M1K3's licence (FSL-1.1-ALv2), at no charge, on as many Macs as you like — each one on its own. M1K3 for Teams is for what a single Mac cannot do: a shared brain served to many devices over your network, an institutional memory your people can all draw on, a persona tuned to your organisation, and someone to call. It is also the licence for offering M1K3 to others, which the free licence withholds.

What hardware does it need?

Apple Silicon Macs you own — a Mac mini or Mac Studio class machine serves as the brain; the people it serves use their Macs, iPhones, and iPads on your network. Nothing is rented from anyone, and nothing sits in a data centre.

Can it use our own models or fine-tunes?

Yes, within the limits of the hardware. M1K3 runs models through MLX on Apple Silicon and pins every brain it ships to a verified revision; a Teams deployment can carry a brain chosen or tuned for your domain, scored on the same eval harness the public brains page uses, so you can see how it does before your people rely on it.

How does a pilot work?

A pilot is fixed-scope and fixed-price, agreed up front: one site, your hardware, your knowledge, a few weeks, and an honest written report at the end — including the things that did not work. Round Tower is taking on a small number of design-partner pilots; write to kevin@round-tower.ie.

// nothing leaves your network

Your AI. Your hardware. Your domain.

M1K3 for Teams is licensed separately from the free app and deployed only on hardware you own. A short conversation is the first step.