The Box

Your own AI, on your own desk. A private AI appliance that arrives set up, keeps your data with you, and is yours to keep for one price, from $3,300.

  • Free US shippingWe currently ship to the US only.
  • 30-day returnsFrom delivery, less a 15% restocking-and-setup fee.
  • Technical supportTwo weeks of onboarding, plus 12 months of support.

See it yourself

It’s three things in one box.

  • The hardware

    Like having a private AI datacenter on your desk.

  • The interface

    Chat and AI agents, from any laptop or phone.

  • The service

    Set up, kept current and supported by people you can call.

What’s on the Box

01

An agent that does the work, not just the talking.

Hermes Agent can take a task, break it into steps and use tools to finish it. It keeps a memory of what you’ve told it, on the Box.

02

Skills and scheduled jobs.

Teach it a routine once, then let it run on a schedule: a morning brief, a weekly recap, a reminder sent to your phone. It does the work while you’re away and has the result waiting.

03

The Model Store.

Switch models in Settings, or download new ones we’ve approved for the Box. Downloads are checked against a signed list before they install, and pick up where they left off if your connection drops.

04

From your phone, or anywhere.

Use it from any browser at home. Add Tailscale and reach it from the office or the road. Link Signal or Telegram and message it like a contact.

05

Plug in your own tools.

The Box speaks the same API format most AI apps already support, so you can point your own scripts and apps at it.

01 / 05

If one of those sounds like your week, the Box is built for it.

It can get better after it arrives.

It arrives with capable models already installed and tuned to its hardware. After that, the work doesn’t stop on our side.

New models, when they’re worth it.

When a promising open model comes out, we try it on the Box’s own hardware. If it earns a place, it appears in your Model Store and you download it with one click. That’s how Qwen 3.8 reached owners in August 2026, and it can read images.

Better settings, found for you.

Speed on local AI comes from settings most people never touch. We test them per model on the Box itself, and when we find better ones, we send them as an update.

You decide when.

Every update is signed and checked before your Box accepts it. You choose when it installs, and if one fails, the Box returns to the version that worked.

And if you never update it again, it keeps working exactly as delivered, offline, with no subscription.

See what we’ve shipped so far

What it runs, and how fast

Full benchmarks
Available with64 GB memory (available)128 GB memory (available)

Qwen 3.6 35B-A3B: output 73.2 tokens per second, input 928 tokens per second, first reply in 22.7 seconds, later replies in 1.5 seconds.

Output

73.2 tok/s

Writing a reply

Input

928 tok/s

Reading an 8K-token prompt

First reply in a new chat

22.7 seconds

To first token, 18K context to read

Later replies

1.5 seconds

To first token, context cached

Context
256K tokens
Chats at once
2 on 64 GB · 4 on 128 GB
Quantization
5-bit

What’s inside

A small desktop computer built around one AMD chip, with memory shared between its processor and graphics so large models fit.

Full specs
Processor
AMD Ryzen AI Max+ 395
Memory
64 GB or 128 GB$3,300 with 64 GB, $4,800 with 128 GB
Storage
1 TB NVMe SSD
Networking
Wi-Fi 7 and 5 Gbit Ethernet
Size and weight
4.5 litres, 3.1 kg

You’re buying from two people, and you’ll talk to them.

Mike Maddison and Asha Zimmerman, the two founders of Arx.
  • We listen.

    Every message reaches Mike or Asha, and we read all of them ourselves.

  • We fix things.

    When something goes wrong, you get one of us, not a ticket queue. For 12 months, we help you resolve technical problems at no charge.

  • We help you get more from it.

    In your first two weeks, book time with us to set up the AI, automations and services around the way you work.

support@voxcura.io

What your one payment covers.

  • The BoxAlways-private local AI, ready to use when it arrives.
  • SupportTwo weeks of onboarding, weekdays 9 to 5 Eastern, by appointment: resolving issues, configuring the AI, automations, connecting your services. Plus 12 months of technical support: we help you resolve technical problems with the Box, by appointment, at no charge.
  • 1-year hardware warrantyFrom delivery, for the original buyer: we repair or replace a defective part or unit, and cover reasonable shipping.
  • Free US shippingBuilt to order; it reaches you in about 3–4 weeks.
The Box on a sage backdrop, a hand reaching in to touch its top

The Box

From$3,300

or $275/mo for 12 months with Affirm*

*Currently sold out

Free US shipping · Tax at checkout ·
~3-4 week build-to-order delivery

Buying for a team?

Ordering several Boxes for your company? Tell us how many you need and we’ll send you a quote.

Request a quote

30 days to decide it’s right for you.

Use it with your real work. If it isn’t right, send it back within 30 days of delivery.

30 days from delivery

Return it in its original, fully working condition, with everything it came with. Normal use is fine. Only physical damage, missing parts or unauthorized modifications void a return.

How the refund works

We refund the purchase price less a 15% restocking-and-setup fee, within 10 business days of receiving the Box and checking it. You pay return shipping, and that cost isn’t refunded.

Your data

Back up and remove anything you want to keep before you send it. When it arrives, we wipe the Box. We don’t keep your data.

Every Box is configured, tuned and tested to order before it ships. That work is done either way, so the 15% fee applies to every return, whether or not it was opened or used.

Full return terms (Terms of Sale §6)

Questions, answered.

How is this different from the cloud AI I use now?

It works from your home or office, not from a data center. There’s no usage meter, no monthly plan to change under you, and your conversations stay on the Box. It also runs open models, sized for this hardware, so it’s best at everyday work: writing, summarizing, answering from your documents, and routine tasks. Watch it in the demo above and judge whether that covers what you need.

Is it safe when it’s connected to the internet?

Nothing on the Box is open to the internet by default. Reaching it from outside your home only works once you set up Tailscale with your own account, and you can turn that off whenever you like. We can only reach it if you open a support session and give us the code.

Does my data actually stay on the Box?

Yes. Your prompts, files and conversations are stored on the Box and never pass through us. On its own, the Box sends one thing: a daily check for updates that includes only its version number, and you can switch that off. Anything else leaves only if you connect something that sends it, like Signal.

64 GB or 128 GB?

Memory can’t be added later, so choose for the work you expect. 64 GB runs our default models for up to two people or agents at once. 128 GB handles up to four at once and leaves room to grow. See models and speed.

What if Arx stops making updates?

Your Box keeps working. It doesn’t depend on us or on updates to run: it works offline, as delivered, with no subscription, for as long as you own it.

Do I need to be technical?

No. Setup is seven short steps from your phone or laptop: join the Box’s Wi-Fi, choose a password, connect it to your own Wi-Fi. For the first two weeks you can also book time with us to fit it around your work.

What if the hardware fails?

The hardware has a one-year warranty from delivery, for the original buyer. Contact us, not the parts maker: we repair or replace the faulty part or unit and cover reasonable shipping.

Can I buy one outside the US?

Not yet. We sell and ship to buyers in the United States only.

Is it encrypted?

Your data is protected by your password and the Box’s file permissions, not by disk encryption. Keep it somewhere you trust, as you would any computer.

Still have a question? Email support@voxcura.io.

Your own AI, on your own desk.

From $3,300. Set up, supported, and yours to keep.