The AI lives in your document, not beside it.
cunei is a native Mac word processor that edits real Word .docx files — and its AI works inside the page: a tracked change you accept or reject, an anchored comment, a structure fix. Not a chatbot you copy-paste from.
Private beta for macOS 26. On-device AI is free; cloud AI is bring-your-own-key.
Plain-English rewrite of the selected sentence.
Claim unsupported by your attached sources.
Remove a stray section break before p.4.
Ask in plain language. It acts in the document.
Open The Margin with ⌘K and ask for what you want. Because cunei owns its editing engine, the result lands in the page's own margin as type-coded proposals you review — real editor operations, not text to paste. Chat-beside tools can't reach the page like this.
Rewrites and fixes arrive as real Word tracked changes you accept or reject — nothing is silently rewritten.
A review pass checks each claim against your attached sources and labels it supported or unsupported, with the real quote. No invented citations.
Blank pages, stray section breaks, broken numbering — it troubleshoots the document itself, not just the prose.
Copilot, Google Docs and Notion sit beside the document and hand you text to paste. cunei owns its editing engine, so it can act in the page — and fix the page.
Your words stay yours.
Two AI lanes, one principle: nothing routes through a cunei server. The free on-device lane never leaves your Mac. The cloud lane uses your own provider key, calling the provider directly.
On-device by default
Quick rewrites and proofreading run on Apple Foundation Models. They never leave your Mac, and they're always free.
Bring your own key
Claude, GPT or Gemini, with token-by-token streaming. Your key calls the provider directly — you pay your provider, not us.
No cunei server in the loop
We don't see your documents, your prompts, or your key. There's no backend for us to leak.
Built for long, serious documents.
Full-fidelity .docx round-trip plus the heavy machinery serious documents demand — the tools academics and legal writers stopped expecting from a Mac word processor.
Review & collaborate
- Tracked changes
- Comments — reply & resolve
- Style-drift inspector
Scholarship
- Footnotes & endnotes
- Citations & bibliography — APA / MLA / Chicago
- Captions & cross-references
- Table of contents
Legal
- Table of Authorities + Mark Citation
- Multilevel & legal list numbering
- Basic Bluebook citations Coming in beta
- Content-control templates
Document craft
- Header / footer editing
- Page setup & table styling
- Images, find & replace
- Print & PDF export
Beta-ready depth; a few items marked “Coming in beta” are still landing.
For people who never want to open Word again.
Two claims, and only cunei can make both at once: it acts inside the document, and it owns the engine — so it preserves .docx fidelity and fixes structure a chat can't even see.
| cunei | Word + Copilot | Pages | Google Docs + Gemini | |
|---|---|---|---|---|
| Where the AI works | In-document — tracked edits, anchored comments | Chat beside the doc | No real AI editing | Chat sidebar |
| Owns the .docx engine | Yes — full fidelity + structure fixes | Native format; AI can't fix structure | Lossy .docx round-trip | Converts to / from .docx |
| AI privacy | On-device default + BYO-key, no backend | Cloud (Microsoft account) | n/a | Cloud (Google account) |
| Grounded, source-checked review | Yes — real quotes via Citations API | ✗ No | ✗ No | ✗ No |
| Tracked-changes review depth | Full | Full | Limited | Limited |
| Table of Authorities + Mark Citation | Yes | ✓ (clunky) | ✗ No | ✗ No |
| Pricing | No subscription; pay your AI provider only | Microsoft 365 sub | Free | Workspace sub |
| Native macOS (Liquid Glass) | Yes | No (cross-platform) | ✓ | No (web) |
No subscription. You own your key.
On-device AI is always free. For the cloud lane, two honest options — both with no cunei subscription.
Mac App Store
Cloud AI free in cunei — you bring your own key
Sandboxed and simple. The cloud AI (Claude, GPT or Gemini) is free in cunei; the only thing you ever pay is your provider, for exactly the tokens you use.
- On-device AI free forever
- Bring your own provider key
- Nothing routes through a cunei server
Direct edition
DirectOne-time “cunei Pro” unlock — price set at launch
A notarized download with a one-time Pro unlock — pay once, no subscription — that switches on the cloud workspace. Same bring-your-own-key model.
- Pay once, no subscription
- Same BYO-key cloud lane
- On-device AI free forever
On-device AI is always free. Bring your own key. Pay your provider only for what you use — never us.
Pricing finalised at launch; the waitlist gets first word. Not buyable today — there's nothing to download yet.
The honest answers.
Mac-only excludes my co-authors?
No. cunei edits standard .docx, so co-authors on Word, Pages or Docs open your files normally. You collaborate in the universal format — you just get a better tool for your part.
Do I really need another word processor?
If blank pages, broken numbering, stray section breaks and drifting citations sound familiar — and you're tired of pasting AI suggestions back by hand — cunei is the first place the AI can fix those in-document.
Why trust AI to edit my document?
You don't have to — you review it. Every action is a tracked change you accept or reject, or a comment you resolve. Nothing is silently rewritten, and the grounded review pass checks claims against your own sources with real quotes.
Isn't bring-your-own-key friction and cost?
No subscription, ever. On-device AI is always free. Your key calls the provider directly (usually pennies), with a guided paste-your-key flow. Nothing routes through cunei.
Is my work private?
On-device by default, bring-your-own-key cloud, and no cunei backend. There's no server in the middle for us to leak.
Is this real, or vaporware?
It's a real app in private beta. This page shows interface concepts and labels anything still landing as “Coming in beta” — which is why the button says “Get early access”, not “Download now”.
Be first when cunei opens.
A real word processor that is the AI's workspace. Join the list and we'll email in small waves, newest features first.
macOS 26 · private beta · no spam — unsubscribe anytime.