Your AI-Powered
Writing Studio.
Brainstorm with it. Draft with it. Edit with it. One rule never changes: nothing is final until you approve it.
Under construction. Doors open soon
She was walking slowly acrosscrossed the very quietsilent room, feeling extremely nervous.rehearsing her lie.
Marcus didn't look up from the ledger. That was the thing about her brother — he could make ignoring you feel like a verdict.
Flow one · you write, it edits
Every cut is a proposal. Accept it, reject it, or rewrite it line by line.
An editor that proposes.
An author who disposes.
A full editorial team with one writer in charge. Six ways to put it to work:
Break it down
A 90,000-word project will bury you. Split it into chapters and scenes, and every piece gets its own AI conversation that still knows the whole book.
The interview
You talk. It asks the next question, and the one after that, until your fuzzy idea has edges. Then your own answers become the outline.
It writes the first pass
Hand over the outline and let it write the ugly first draft. You leave notes in the margins; it rewrites until you run out of notes.
It marks up your pages
It combs what you wrote like a paid editor: every suggested change is a tracked redline you accept, reject, or rewrite. Nothing lands without your say.
Honest notes
No edits, just the truth: what works, what drags, and where a reader would quietly put your book down. It never changes a word.
It learns how you sound
Feed it pages you wrote yourself. From then on, its drafts and edits sound like you on a good day, not like an AI on any day.
The house was very old and it had been empty for a long timeDM: too wordy — cut this in half, and Sarah felt afraid as she walked up to the front doorDM: show the fear, don’t name it.
The house had stood empty for thirty years. Sarah’s hand shook on the gate latch.
Flow two · it drafts, you direct
It drafts. You leave notes. It listens. The same trade, in the other direction.
Editors with training,
not just a model.
Out of the box, AI gives you book-report notes. Every Quillotine editor runs a named, opinionated editorial method, built by a working writer and tuned on real manuscripts. Pick your editor and run the pass.
The First Reader
Reads like your toughest fan: where they lean in, where they skim, where they put the book down. No cheerleading. That's the point.
The Line Surgeon
Hunts limp verbs, filtered action, and dialogue where everyone agrees. Demands tension on every page, then shows you the cut that gets it.
The Architect
Maps your chapters against story structure that has held up for a century. Finds the sag in the middle before your readers do.
The Proofer
Commas, continuity, timeline slips, and the character whose eyes quietly changed color in chapter nine.
The Ghost
Learns exactly how you sound, then stands guard, flagging every line where the AI, or a tired you, drifts off-voice.
More on the way
New editors join the staff over time, and every one of them works the same way: proposals only. You keep the final say.
Your words are never hostage.
Plain files, forever
Under the hood your book is plain Markdown. No proprietary format, no lock-in, nothing you can't open in any editor on earth.
Export everything, always
One click downloads your entire project. Cancel any time and walk away with every word. We'd rather earn next month.
Your AI or ours
Frontier Claude is built in. Prefer your own key or subscription? Bring it. Quillotine works with the AI you already pay for.
A note from Dave
I didn’t build this to sell it.
I’m a writer. Six novels. One work of nonfiction. And as AI improved, my writing flow kept evolving, but my software didn’t keep up. I was living in two windows: my manuscript in one, an AI chat in the other, copying and pasting between them like it was 2003.
So I built the tool I wanted. One place where the AI could read my chapters, mark up my pages like an editor, and take my notes like an assistant.
I’ve used it daily since, and my writing speed more than doubled.
I kept telling friends about my new software. They kept asking for copies. I kept apologizing, saying, “I custom-built this for my setup. Sorry.”
But as the requests kept coming in, I started to wonder, “Do I have something here?”
So I rebuilt it as a web app so I could share it. I hope you love working in it as much as I do.
— Dave Mason
Priced like a tool.
Worth an editor.
- The full studio workspace & binder
- Organize & brainstorm modes
- Bring your own AI key
- Export everything, always
- Everything in Writer
- The AI editorial team: edit, critique, draft
- Voice training on your own pages
- Frontier Claude credits included
- Everything in Author
- Invite beta readers, free for them
- Human editors through the same redlines
- Multi-book series & premium passes
✳ Founder pricing: the first 100 founding members get 50% off, locked for life.
Your book. Your voice.
Your final say.
Follow the build, then be first through the doors. Unsubscribe anytime.