First Book AI
First Book AI (Casper Brix) · Writing
First Book AI is an AI book writer that turns your expertise and stories into an 8-chapter nonfiction manuscript in your own voice, with an outline you approve, a cover, and export files.
About First Book AI
What Is First Book AI
First Book AI is a web app for professionals who want a nonfiction book but keep pushing it down the list. You answer questions about your topic, your readers, the tone you want, and the stories only you can tell. The tool builds an 8-chapter outline with three subchapters each, waits for your approval, then drafts one chapter at a time from a writing sample you provide. It works like an AI ghostwriter that keeps you in the loop at every step.
The product targets a specific gap. Ghostwriters cost five figures and take months. Writing courses teach structure but still leave you alone with the blank page. General tools produce text that reads like everyone else. First Book AI sits between those options: a nonfiction book generator that keeps your examples and your phrasing, at a price a consultant can put on an expense report. The goal is to write a book with AI without handing over the argument.
Limits matter here. The output is nonfiction, so novels and picture books sit outside its design. A draft still needs a human edit before it goes to Amazon KDP, and the company recommends a plagiarism scan first. The free tier covers outline generation only, not a finished manuscript.
Getting Started
- Sign up at app.firstbook.ai and generate a free outline. No credit card is required for that step.
- Answer the onboarding questions about your topic, audience, tone, and personal anecdotes, then paste in a writing sample.
- Review the 8-chapter outline, rename or reorder sections, reshape the subchapters, and approve it.
- Buy a credit when you're ready to write. Each chapter arrives as a draft you can edit, approve, or regenerate.
- Generate the cover, export to Word, EPUB, Markdown, or PDF, then publish or hand the file to an editor.
Product Information
A quick look at First Book AI's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Consultants and coaches
- First-time nonfiction authors
- Course creators and speakers
Tasks
- Turning a workshop into a lead magnet
- Drafting a Kindle business book
- Producing coaching material
Scenarios
- A book that has been on your list for years
- A speaking season with a book deadline
- A series of client books or lead magnets
Key features
Guided Onboarding Instead of Prompt Writing
You don't write prompts. The app asks about your topic, your reader, your credentials, and the anecdotes you want included, then suggests angles when you stall. That structure is the main difference between this and dropping a one-line request into a chatbot. It also means the quality of the output tracks the quality of your answers.
An 8-Chapter Outline You Approve First
The book outline generator runs before a single chapter is written. First Book AI produces eight chapters with three subchapters each, and each section carries a stated purpose. You can rename, reorder, or reshape the outline. Nothing moves forward until you approve it, which keeps the book's argument under your control.
Voice Matching From a Writing Sample
During setup you provide a writing sample and pick a tone. The tool builds a style profile and writes each chapter against it. In practice the draft keeps your sentence rhythm and vocabulary, but it still smooths out rough edges, so plan a pass to put your sharper opinions back in.
Chapter-by-Chapter Control
Each chapter lands as a draft with three options: approve it, edit it inline, or regenerate it for a different direction. You can also adjust the depth to control length. The Pro and Premium packs raise the ceiling to 24 chapters per book, which suits a fuller business title.
Twelve Languages, Written Natively
The AI book writer works in English, Spanish, French, German, Portuguese, Danish, Norwegian, Swedish, Dutch, Italian, Polish, and Finnish. The company says it writes natively in each language rather than translating. A finished book can also be switched to another language in one click, which helps when your audience spans markets.
Cover Generation and Multi-Format Export
Every credit includes one professional cover, and Pro and Premium add a custom cover editor. Export covers Word, EPUB, Markdown, and PDF in one click, with Google Docs export on the larger packs. That range covers a Kindle release, a print file for a designer, and a PDF you hand to clients.
Author's Club After the Draft
Any credit purchase includes access to Author's Club, a community of 400+ authors hosted on Skool, with the First Book AI team inside. Members trade feedback on outlines and chapters and get help with editing, publishing, and Amazon KDP. Free outline accounts are not included.
Pros and cons
Pros
- The outline-first workflow keeps a long project organized, which is the part most nonfiction drafts fail on.
- Voice matching from a writing sample produces a draft that reads closer to the author than a generic AI writing tool does.
- One-time credit pricing removes the subscription pressure that makes people abandon half-finished books.
- Export formats cover the practical paths: KDP, a human editor, and a client-facing PDF.
- The 30-day refund policy applies after you have generated one book, so you can judge real output before committing further.
Cons
- One credit covers one book, so a 20-book plan is the only way to get the $9.95 per-book rate.
- The free plan stops at the outline, which means you can't test chapter quality without paying.
- Nonfiction only. Memoir, fiction, and illustrated children's books fall outside what the templates support.
- Drafts still need a human edit and a plagiarism check before publishing, so the total cost includes work the price doesn't mention.
Frequently asked questions
First Book AI is an AI book writer for nonfiction. You answer questions about your expertise and audience, approve an 8-chapter outline, then receive chapter drafts written in your voice with a cover and export files.
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