Private by design
Every request is answered by the chip in the box, not a data center. There is nothing to leak, because nothing leaves.
Introducing Hearth
Intelligence that
never leaves home.
Hearth is a small, quiet box that runs AI models entirely on your network. No cloud, no accounts, nothing uploaded. Just answers, voice and automation — powered by your own electricity.
Ships in 2 weeks · 30-day home trial · 5-year warranty
45TOPS on-device
<200 msvoice response
0 KBsent to the cloud
38 dBat full load
Why Hearth
A computer that keeps your secrets.
Everything Hearth does happens in the box. That single fact changes what an assistant can be: private, instant, and yours.
Instant, every time
Sub-200 ms voice responses with no round trip to the cloud. Ask, and it answers before you finish the sentence.
Works offline
Turn the internet off and Hearth keeps working. Outages, flights, or a cabin with no signal — it doesn't notice.
Whisper quiet
38 dB at full load — quieter than a library. A warm glow, not a fan. You'll forget it's on.
Grows with you
Download new models over your LAN whenever they ship. Your box gets smarter without ever leaving the shelf.
Whole home
One box, every room. Voice in the kitchen, vision at the door, a daily summary in your inbox — all local.
“The first smart speaker that respects you. It listens, it answers, and it never phones home.”
— The Local Times, on Hearth Home
Technical specs
Small on the shelf.
Big under the ceramic.
- Neural engine
- Hearth H1 · 45 TOPS (INT8)
- Memory
- 32 GB unified, on-package
- Model speed
- 7B model at 40 tokens/s
- Power draw
- 9 W idle · 55 W peak
- Noise
- 38 dB at 1 m, fanless ceramic
- Connectivity
- Wi-Fi 6E · 2× 10GbE · USB-C
- Storage
- 512 GB NVMe, models stay local
- Dimensions
- 120 × 120 × 38 mm
- Weight
- 620 g
- Materials
- Recycled aluminum, ceramic top
- In the box
- Hearth, 60 W supply, USB-C cable
- Warranty
- 5 years, included
Pricing
One box. Three sizes of smart.
Every Hearth includes the app, unlimited local use, and free model updates for life.
Solo
For one person, one room
$349
- 16 GB unified memory
- Models up to 7B parameters
- Voice assistant, local
- Wi-Fi 6E + 1× GbE
- 2-year warranty
Home
For the whole house
$549
- 32 GB unified memory
- Models up to 30B parameters
- Voice + vision (door, shelves)
- Wi-Fi 6E + 2× 10GbE
- 5-year warranty
Studio
For creators and tinkerers
$899
- 64 GB unified memory
- Models up to 70B parameters
- Everything in Home
- 2× 10GbE + USB4
- 5-year warranty + priority support
| Compare | Solo | Home | Studio |
|---|---|---|---|
| Memory | 16 GB | 32 GB | 64 GB |
| Model size | up to 7B | up to 30B | up to 70B |
| Voice assistant | ✓ | ✓ | ✓ |
| Vision | — | ✓ | ✓ |
| Ethernet | 1× GbE | 2× 10GbE | 2× 10GbE |
| Warranty | 2 years | 5 years | 5 years |
FAQ
Questions, answered locally.
Completely. Hearth has no cloud dependency at all — the model, your voice, and your data never leave the box. You can unplug the router and everything keeps working. The internet is only used if you choose to download a newer model, and only when you ask it to.
Ask questions out loud or in the app, get a daily morning summary, search photos on your devices without sending them anywhere, translate conversations, draft and answer text from your own notes, and run automations like "when the door opens at night, tell me who's at the door and dim the hallway." If a model can run on 32 GB, Hearth can run it.
Smart speakers record your voice and send it to a data center, where a model answers and the reply is sent back. Hearth does the opposite: the model lives in the box, so the only thing that ever "speaks" is your home. No recordings, no accounts, no ads, no updates that quietly change what's collected — because nothing is collected.
Any open model that fits in memory: from a snappy 3B voice model up to 30B on Home and 70B on Studio. New releases appear in the app as one-tap downloads over your LAN, and you can always pin the version you like. No model is ever streamed from the cloud while you use it.
9 watts at idle and 55 watts at peak. That's less than a nightlight most of the day — roughly $4 a year at average US rates — and it's the reason the box stays silent: there's barely enough heat to need a fan, so there is no fan.
Every order includes a 30-day home trial with free return shipping. And because Hearth stores nothing you didn't put there, returning it means unplugging it — there's no account to delete and no data to wait for.
Bring intelligence home.
Ships in two weeks. 30-day home trial. Nothing ever leaves the house.
Order Hearth — from $349