Nellie
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Nellie 3.0 is out, our best book model yet

One idea in. A finished novel out.

Nellie writes complete, professional-quality books: plot, chapters, art, cover and audiobook, from a single prompt. No templates. No experience needed.

Try Nellie now See example books
11,000+ books generated ★★★★★ 4.9 on the App Store Export to PDF & EPUB

Not just novels

Same one-prompt engine, four very different shelves.

Novel cover

Novels & fiction

Any genre, full length, with a plot that holds.

Manga cover

Comics & manga

Panelled art that matches the page it sits on.

Textbook cover

Textbooks & courses

Structured lessons, accurate and up to date.

Children's book cover

Children's books

Illustrated, age-tuned, ready to read tonight.

One prompt · one tap · one whole book

The AI that writes the whole book.

Not an outline. Not three chapters. Give Nellie one prompt and it returns a full-length book with plot, characters, every chapter, cover art and an audiobook, without asking you to write a word.

Start your book free Watch it work
Nellie 3.0 · one-shot generation Idle
Your prompt
A soldier wakes after every death in the body of the person who killed him.
01 Develop plot Waiting
02 Generate outline Waiting
03 Populate sub-points Waiting
04 Write each section Waiting
05 Review storyline Waiting
06 Generate cover Waiting
15 chapters · 61,400 words · 1 prompt
Cover art, interior images and audiobook included.
Proof, not promises

Open one and read it yourself

Atalio cover

Atalio

Epic fantasy · 24 chapters

Grown from one line about a city hanging beneath a broken ring.

Leave Your 9 to 5 cover

Leave Your 9 to 5

Business nonfiction · 12 chapters

A quit-your-job playbook, start to finish, from one prompt.

The Discordant Hum cover

The Discordant Hum

Horror comic · 96 panels

A flickering corridor and something living behind the drywall.

Browse every example book →
The difference

Every other AI book app makes you do the work.

Typical AI writer
You prompt again for every chapter.
Output caps out at a short story of 5,000 to 10,000 words.
Characters and plot drift by chapter four.
No cover, no images, no audiobook.
Copy-paste into a doc and fix the formatting yourself.
Nellie 3.0
One prompt. The entire book comes back finished.
Real book length: 20+ chapters, 40,000 to 80,000 words.
A consistency engine tracks characters, plot and voice cover to cover.
Cover art, interior visuals and lifelike narration included.
Export a publish-ready PDF or EPUB in one tap.

Three taps, start to shelf

01

Describe it once

A sentence is enough. Pick genre, length and tone if you want more control.

02

Nellie writes it all

Outline, chapters, characters, images and cover, all generated in one pass and streamed live.

03

Read, refine, publish

Rewrite any chapter with the AI editor, then export to PDF, EPUB or audiobook, ready for KDP.

A publishing house in your pocket

Write on the train, listen on the walk home. Everything syncs between iPhone, iPad, Mac and the web app.

Lifelike audiobook narration in multiple voices and languages
Chapter-level AI editing, rewriting and refinement
PDF and EPUB export in hundreds of languages
Live generation streaming, so you watch the book arrive
Nellie generating a book
Nellie reader
Nellie audiobook player

See a book get written

4.9 stars, 100+ ratings

Read them on the App Store
"I've tried every AI writer out there and nothing comes close. The chapters actually flow and the characters feel real. Made a kids book for my children and they asked me to read it twice."
Noah ★★★★★
"Instead of replacing the creative process it augments it. Continually impressed with how much better this does at generating compelling stories vs generic AI tools."
pws5068 ★★★★★
"I really didn't think it would be able to generate mangas like that. The art actually looks like it was drawn by a studio and goes exactly with what's written on the page."
Grace ★★★★★
"Used it to write up investing and economics courses. Actually gets the info right and is really up to date, lays out the course perfectly like a teacher walking you through a class."
Grant ★★★★★
"Any time I have an idea for a book I throw it in and am seriously impressed by the results. I could use this thing all day."
Kaitlyn ★★★★★
"This saved me so much time. I had an idea for a fantasy novel but never knew how to organize it. Nellie generated a complete structure, characters and chapter flow in minutes."
Skyboardsrx ★★★★★

You have the idea. That's the hard part.

Start free. Write your first book today, on any device.

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