PHNTM ONE
PHNTM One is a private, local-first AI appliance: a hand-built desktop device (Raspberry Pi 5, 8 GB, 10.1″ touchscreen) that runs an on-device model (Gemma 3 4B) to provide a voice-capable assistant, memories, document reading, timers, Home Assistant integration and offline knowledge — sold as a one-time $549 purchase with no subscription and zero telemetry by default.
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Quick Overview
Best for: AI Agents
What it does
AI Agents software for decision-makers comparing workflow fit and alternatives.
Best fit
AI Agents
Pricing snapshot
Paid from $549 one-time
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PHNTM ONE
PHNTM One is a physical, local-first AI assistant built to run on a small desktop computer you own. The device ships with a 10.1″ touchscreen, a Raspberry Pi 5 (8 GB), and an on-device model (Gemma 3 4B) so speech, memories, documents and automation are processed locally by default. The product emphasizes privacy (Private mode: nothing you say leaves the box), ownership (one-time purchase, no account, no subscription), and resilience (self-maintenance with bounded repairs and the ability to work with the internet unplugged). The device supports optional modes that use the user's own cloud API key (Boosted/Autonomous) and includes local integrations such as Home Assistant, a phone-based web app via QR, SSH access and an offline library of reference packs.
A private AI appliance for your desk: it talks, remembers, keeps your day, reads your documents and runs your home, on the device. $549 once, no subscription.
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Claim this listing for $29Key Features
Local-first AI (Private mode)
In Private mode (default) the model, memories, documents and speech are processed on-device; the site states 'what you say, sent out in Private mode: 0 bytes' and 'zero telemetry, no account, no subscription by default.'
On-device model — Gemma 3 4B
Ships with Gemma 3 4B running on the device (Raspberry Pi 5 · 8 GB); designed to work with the internet unplugged and an offline library of reference packs.
Speech and voice interaction
Push-to-talk mic (USB) with a visible red-dot indicator; tap-to-talk or press TAB; speech processed on the box with no wake word and up to five minutes dictation.
Memories, documents and search
Stores memories, notes, documents and photos locally; answers cite exact files/pages and a single search box searches memories, documents, reminders and chats.
Reminders, timers and alarms
One-off and recurring reminders, multiple named timers, alarms that survive restarts, and open-loop tracking of tasks and follow-through.
Home automation (Home Assistant bridge)
Local-only integration with the user's Home Assistant hub over the LAN (no vendor cloud) for lights, plugs, scenes and thermostat control; serious actions can require a screen tap to confirm.
Self-care and resilience
A supervisor runs checks every 90 seconds and offers fifteen bounded self-repairs with transactional file fixes, weekly plain-language reports, and upgrades that only apply after user approval and signed updates.
Offline library and file handling
Includes an offline library (Wikipedia and reference packs stored on-device), local OCR for photos/scans, PHNTM Drop to transfer files from devices on the same network, and an export 'Take Everything' function with checksums.
Optional Boosted/Autonomous modes
Boosted: use your own Anthropic API key for higher-capability answers (requests leave the box on your key). Autonomous: acts via Telegram and your key to draft/prepare email and calendar items that wait for your confirmation.
Developer-friendly access
Runs Debian Linux with documented SSH access that is never removed; the device exposes logs and proof commands for verification.
Pricing
PHNTM One
$549 one-time- Raspberry Pi 5 · 8 GB · 10.1″ touchscreen
- Gemma 3 4B on-device model, offline library, SSH included
- Hand-built unit, 24 h burn-in, free US shipping, 30-day returns, 1-year warranty
PHNTM Umbra (target)
$899 target (coming Holiday 2026)- Standalone mini PC option (8-core AMD Ryzen, 24 GB) aimed at larger local models
- Customer supplies monitor/keyboard; free waitlist
Use Cases
Writers (private drafting and review)
Dictate drafts, transcribe notes locally, and ask questions about private files; the assistant cites the exact document and page for answers.
Families (household convenience without always-on listening)
Kitchen timers, shopping lists, named timers and no always-on wake word; an off switch for the mic (USB) provides physical privacy control.
Small offices (local document handling)
Scan receipts and letters, keep documents on-premises and search them locally; one-time purchase avoids per-seat subscriptions.
Tinkerers and makers
Debian, SSH, Home Assistant integration and documented internals make the unit suitable for users who want to inspect, extend or operate the hardware and software.
Integrations
Home Assistant
Acts as a bridge to the user's Home Assistant hub over the local network for lights, plugs, scenes and climate — local-only, no vendor cloud.
Telegram
Optional: chat, reminders and alerts via Telegram; Autonomous mode uses Telegram to present drafts and asks for user confirmation before sending.
Anthropic (user-provided API key)
Optional Boosted mode and Autonomous mode can use the user's Anthropic API key so requests leave the box billed to the user; answers from that path are labelled.
Google Calendar (via Autonomous/Telegram)
Autonomous mode can read and draft calendar items from the device and prepare actions for user confirmation (the page notes Google Calendar integration via Telegram in Autonomous mode).
SSH / Debian
Device runs Debian Linux and documents SSH access that is never removed, enabling developer access and verification.
Benefits
Limitations
Frequently Asked Questions
No verified FAQs are available.
Getting Started
- 1 Reserve a unit online (reservations open; nothing charged to reserve).
- 2 Receive the hand-built unit (batch shipping when PHNTM One 1.0 is certified) and complete on-screen touchscreen setup; no computer is required.
- 3 Optionally pair phones by scanning the QR code on the device to use the private web app, and optionally configure Boosted or Autonomous modes with your Anthropic key and Telegram as desired.
Support
docs
Help center, guides and proof pages on the PHNTM site for setup, verification and troubleshooting.
The site offers direct email contact ('Or just email me directly with questions') — contact via the site root/contact links.
returns & warranty
Free US shipping for orders, 30-day returns and a 1-year warranty as stated on the product page.
API
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