Free to download · Windows

The AI that lives on your computer, not in the cloud.

DeeZen answers questions, writes for you, speaks your language, creates media and gets real work done — privately, on your own machine. Free for the everyday. It only touches the cloud when a task genuinely needs it, and then it uses your key, not our meter.

No account needed for the free tier · your conversations never leave your device by default

Private by design Free for everyday tasks Speaks 50+ languages Honest ~$4/mo, not $20+
What DeeZen does

One app. Everything you actually use AI for.

Not a chat window bolted to a website — a real assistant that runs on your computer and does the work.

Speak to it in your own language.

Talk or type in 50+ languages — Spanish, Vietnamese, Arabic, Mandarin, Italian and more — and get the answer back in your language. Real voice too: speak and hear it reply, on your device. Powered by your own translation server, not a silent hop to the cloud.

Try it free
Many world languages connecting around a point of light 50+ languages · voice

Images, video & audio — made here.

Generate media with a free draft lane on your own hardware, or studio-quality results when you want them — on prepaid credits that never expire. Everything on this page was made by DeeZen itself.

Create something
Made with DeeZen

Use every machine you own.

Link your computers over your own network into one private compute mesh. DeeZen spreads heavy jobs — big computations, media renders, long tasks — across your machines, so the strong box does the lifting while you work on any of them. Your own distributed system, no cloud required.

Build your mesh
Computers linked in a private home mesh Local mesh · distributed workloads

Answers & writing, instantly

Rewrite an email, summarise a document, draft a letter or CV — answered on your machine in seconds, free.

Reads your documents

Drop in a PDF, Word doc, spreadsheet or a photo of a bill — DeeZen reads it and explains it in plain language.

Hands over the finished work

Save to your device, push to your code repo, or deploy to your own server. You approve every step.

Works on your schedule

Set reminders and scheduled tasks — a morning briefing that runs itself, jobs that fire when you want.

Private by design

Your business stays on your machine.

Most AI sends everything you type to someone else's server. DeeZen is built the other way around — it runs on your computer, so your conversations, documents and keys stay with you by default.

01 — Free & local

Everyday tasks run on your machine

Rewrites, summaries, letters, questions — handled by the AI on your device. Nothing uploaded. Always free.

02 — Your key, your call

Harder tasks use your own key

When a job genuinely needs a bigger model, it uses your provider account — billed by them, not us. We never touch your money.

03 — Honest about it

You always know which it is

DeeZen tells you when something leaves your device, and a cost dial puts a ceiling on spend. No surprises.

Honest pricing

About the price of a coffee. Not a $20 subscription.

The free tier genuinely works, forever. The paid product is the full assistant — router, efficiency stack, every feature — for a few dollars a month, and your cloud usage is billed at cost by your own provider.

Everyday AI (local tier)Free
DeeZen subscriptionUS$4/mo
Cloud AI, typical use (your key)~$1/mo
Your all-in cost~$5/mo

A typical frontier AI subscription is ~$20+/mo. Cloud usage is metered by your provider on your key — DeeZen never marks it up.

Free
$0 forever
  • Everyday answers & writing on your device
  • Reads documents, PDFs & photos
  • 50+ languages, text & voice
  • Private — nothing uploaded
Download free
DeeZen
$4 /month
  • Everything in Free
  • The full assistant — router, efficiency stack, all features
  • Media creation (images, video, audio)
  • Your own compute mesh across devices
  • Cost ceiling dial — you control spend
Get DeeZen

Try it on your own computer.

One download, a minute to install, and the everyday AI is free from the first run — no account, no card, nothing uploaded.

Signed by ZenCognitics Pty Ltd · Windows 10 & 11 · Mac & Linux on the way