PHNTM Umbra. The bigger brain.
PHNTM, being rebuilt as a standalone mini PC: an 8-core AMD Ryzen and 24 GB of memory, aimed at much larger local models. You'll bring the monitor and keyboard; its 5-inch flip-up screen will be the face.
// in development: every spec on this page is a target until the reference unit passes the same tests as PHNTM One
Progress published, one step at a time.
Same rule as PHNTM One: nothing ships until it passes the tests, and the measured numbers are published on the proof page. This page updates as each step lands.
More machine. Same promise.
Umbra is being built to run the same PHNTM software as PHNTM One: private by default, no account, no subscription and zero telemetry. What changes is how much it can think with.
AMD Ryzen 7 H 255
An 8-core x86 processor, rated 45 W by AMD, with Radeon 780M graphics, in place of the Raspberry Pi 5's four ARM cores.
24 GB DDR5
PHNTM One runs a 4B model in 8 GB. Umbra's memory is aimed at models three to five times larger, still on the device and still offline. Which models ship will be decided by measured speed on the reference unit, not by this page.
5″ flip-up touchscreen
Planned: the breathing orb and live status here, at a glance, and the full interface on your own monitor.
1 TB NVMe
Room for the models, your documents and everything it remembers. Memory and storage are standard, upgradeable parts.
PHNTM One or PHNTM Umbra?
PHNTM One is made to order and paid for once; Umbra is planned the same way. The difference is the shape of the machine and the size of its brain.
PHNTM One
- form
- All-in-one, with a 10.1″ touchscreen built in
- compute
- Raspberry Pi 5 · 4 cores
- memory
- 8 GB
- local model
- Gemma 3 4B, on the device
- screen & keys
- Included: touchscreen and a mini wireless keyboard
- ships
- Within 7–10 business days after payment
Best for a finished, touch-first appliance on the desk or counter, today.
Order PHNTM One · $549PHNTM Umbra
- form
- Standalone mini PC with a 5″ flip-up face display
- compute
- AMD Ryzen 7 · 8 cores, 16 threads
- memory
- 24 GB
- local model
- Target: 12–20B class, on the device
- screen & keys
- Yours: an HDMI or USB-C (DisplayPort) monitor and a keyboard
- ships
- The waitlist hears first when ordering opens
Aimed at bigger models and longer documents, on a desk setup you already have.
Join the Umbra waitlistYou bring the screen. It brings the brain.
Planned in the box: the mini PC, its power adapter and a USB push-to-talk microphone, with the software installed and the model loaded. Bring your own speakers or headphones.
Be first when ordering opens.
Free. No deposit and no card. You get one email when ordering opens, plus the occasional build update. We never sell or share the list.