Your imagination. Its attention.
You write. Cadence reads.
Behind every great novel is someone who read the whole book and told the author the truth. Cadence is that reader. As you write, it reads your entire manuscript, gives feedback, finds continuity errors and exposes trends.
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Why Cadence
The best-kept secret in publishing
Published authors have a circle. An agent, an editor, early readers who read the whole manuscript, remember it, and tell the truth about it. That circle is a huge part of why their books work, and it's almost impossible to get into.
Everyone else writes alone. Friends are kind. Writing forums read one chapter. A professional editor costs thousands. So most writers finish a draft with no idea what they've actually made.
Cadence closes that gap. Not by writing for anyone, but by giving every writer the thing that was reserved for the successful: a reader who has read all of it and tells the truth.
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An honest editorial pass on the chapter you just wrote.
What's working, what isn't, in a bite-sized, digestable format. Best bits, so you know what to protect. Weak points, so you know where to look. Short enough to read tonight and act on tomorrow.
It will not flatter you. That's the point.
Best bit
Strong worldbuilding hook. The opener is inventive and instantly sets this apart from generic academy.
Worth a look
Between Chapters 11 and 12, Charlotte's motive pivots without any connective beat to justify it.
Best bit
Dialogue in the kitchen scene does double duty, it's funny and it's doing plot work.
Tension, by chapter
22 dimensions trackedAnalytics & Trends
The instincts you write by, turned into numbers you can watch move.
Does the tension build? Is the middle sagging? Am I too predictable? Cadence scores every chapter across twenty-two dimensions of craft, and Trends charts them across the whole book. For the first time, you can see your novel's shape and watch it change as you revise.
The numbers are a mirror, not a verdict. You stay the judge.
Continuity Scan
It remembers everything you've written.
The green eyes that turned brown. The wound that healed in a day. The Tuesday that follows a Friday. These errors survive every read-through because no single sitting holds the whole book in mind, and they're the first thing sharp readers find.
Continuity Scan holds all of it. Your timeline, your characters, your world, checked against every chapter. Cadence found it, so your readers never will.
Reader
Chat
Talk to a reader who's just finished your latest chapter.
Every writer wants the same impossible thing: to watch someone read their book for the first time. This is the closest anyone has come. A reader who has read exactly up to where you are and no further. They can be surprised. They can be confused. They can tell you the twist landed, or that they saw it coming in chapter four.
It's an AI persona playing a reader, and it's honest about that too.
What we're not
It will never write a word of your book.
Every other AI writing tool is racing to write more of the book for you. Cadence is built on the opposite bet: the writing is the point.
Every word in your manuscript was typed by you. That's not a limitation we're working around, it's the product.
Sign up freeYour manuscript
Your book is yours. Full stop.
Your book lives in your account and is read by the AI only when you ask for something. When you run a feature, your chapters are sent to Anthropic through your own API key, the same way they would be if you pasted them into Claude yourself. Your book isn't ours to learn from, sell, or pass on.
Delete your account and everything goes with it, immediately and permanently. We're a reading tool, not a rights grab.
A space for you to write, and for Cadence to read.
Free to start. No subscription. No card. Just a clean page and an honest reader.