User Guide

1. Getting started

1. Try the free demo (optional). On the homepage type a topic and watch a short sample being written: a title, an outline and a first chapter. No account needed.
2. Create your account and confirm your email. Click the link we email you (valid for 1 hour; check your spam folder). If it expired, register again with the same address to receive a new link. Forgot your password? Use Forgot password on the login page.
3. Subscribe. The studio costs $15 per month, billed by Stripe. There is no free trial. You can cancel at any time under Manage Subscription; access continues until the end of the period you paid for. EU consumers have a 14-day right of withdrawal, explained in the Terms.
4. Add your API key on the API Keys page (see below).
5. Open the generator (Generate eBook in the menu), describe your book and start.

2. Your AI provider key

AI eBook Suite does not resell AI usage. The text is written by an AI model of OpenAI or of one of the many providers available through OpenRouter, using an API key from your own account. The provider bills you directly for what your books consume; we add no markup.

• Our step-by-step guide shows how to create a key with each provider.
• Save one key per provider on the API Keys page. Saving a new key for the same provider replaces the old one.
• Keys are stored encrypted and are used only for the generations you start or resume. You can delete a key at any time.
• Set a monthly spending limit in your provider account: it is the simplest protection against surprises.

3. Describing your book

The generator form has three parts. Only the topic and the brief are required to get a good result; everything else refines it.

AI model

• Provider: OpenAI or OpenRouter. You need a saved key for the provider you choose; the form tells you if it is missing.
• Model: with OpenAI, the list shows the chat models your key can use. With OpenRouter, it shows the text models with a context window of at least 16,000 tokens. Larger, newer models usually write better and cost more per word. Models marked :free are rate-limited by OpenRouter and often stop halfway through long books.

The book

• Type: Narrative story for fiction (novels, short stories) or Informational text for non-fiction (guides, essays, tutorials). It changes how the AI plans the book: characters and story arc, or key concepts and structure.
• Topic (5 to 200 characters): what the book is about, in one line.
• Brief (50 to 4,000 characters): your instructions. This is the single most important input; see the tips below.

Style and length

• Genre and writing style (optional): for example "cozy mystery" and "warm, witty, short chapters".
• Language: the language the book is written in. The AI writes in the language you choose, whatever the language of your brief.
• Author (optional): the name printed on the title page and in the file metadata. Use your real name or pen name; leave it empty for no byline.
• Title (optional): leave it empty and the AI proposes a title and subtitle while planning the book.
• Chapters: from 2 to 25. Words per chapter: from 200 to 5,000. The word count is a target: real chapters vary by about 10 to 20 percent.
• Dedication (optional): printed on the opening page, under the title.

4. How your book is written

1. Planning. One request asks the model for a plan of the whole book: title and subtitle (unless you gave one), a synopsis of the complete story or argument, a style guide, the main characters or key concepts, and a summary of every chapter.
2. Writing. Each chapter is then written in its own request, with the plan and the chapters before it in view. This keeps names, facts, tone and the storyline consistent and avoids repetitions. The most recent chapters are included word for word, up to about half of the model's context window (the amount of text it can read at once): 64,000 tokens with an OpenAI key, and with OpenRouter half of the model's window, at most 200,000 tokens. In a longer book, the oldest chapters are represented by their summaries from the plan.
3. Assembling. The chapters are put together with the title, your byline and dedication and a table of contents, ready to read online and download.

A book needs one request for the plan plus one per chapter. Time depends on the model and on the length: the five-chapter sample books on our homepage took about three minutes each; long books with slow models can take 30 minutes or more. You don't need to keep the page open.

5. Progress, cancel and resume

• Progress: after you start, the status page shows the current step (planning, chapter X of Y, assembling) and a progress bar. It updates by itself; you can also follow all your books in My eBooks.
• Cancel: stops the generation after the chapter being written. Chapters already written have already been billed by your provider and are kept.
• Resume: available for cancelled or failed generations. It continues from where it stopped, reusing the plan and the chapters already written, so you don't pay for them again. If our servers restart during a generation, it continues automatically.
• Recreate: opens the generator pre-filled with the settings of an existing book, so you can change the brief, model or length and start a new version. It is a new generation and is billed in full.

6. My eBooks and downloads

All your books are listed in My eBooks with their status. For a finished book you can read it online (Preview) or download it:

Delete removes a book and all its files from our server permanently. Download the files you want to keep first.

7. What it costs

You pay two separate things: the $15/month subscription to us, and the AI usage to your provider. AI providers charge per token (roughly, per word read and written), at prices that differ a lot between models.

• As a rough guide, a 10-chapter book of about 20,000 words costs a few cents with a budget model, about $0.40 with Gemini 3.8 Flash, about $1.70 with a premium model such as Claude Sonnet 5.5 and about $3.30 with a top-tier model such as Claude Opus 5.5. The cost table on our homepage gives estimates for each model and book length.
• Real example: the five-chapter sample guide on our homepage (about 6,400 words) cost $0.29 with Claude Sonnet 5.5.
• Cost grows faster than length, because every chapter is written with the text before it in view: doubling the number of chapters more than doubles the cost. A 25-chapter book of 100,000+ words on a premium model can cost $10 to $15 or more.
• Some providers discount repeated input (prompt caching), which makes later chapters cheaper.

To keep costs under control: test your brief with a short book (3 to 5 chapters) first, try a cheaper model for drafts, and set a spending limit with your provider. Your provider's dashboard shows exactly what each book cost.

8. Tips for better books

• Make the brief specific. Vague instructions give generic books. Say who the book is for, what it must achieve and what to avoid.
• Fiction: describe the premise, the main characters (name, goal, flaw), the setting, the tone, the point of view and, if you know it, how the story ends.
• Non-fiction: describe the reader and their level, the promise of the book, the topics that must be covered, the order you have in mind, and examples or sources to include.
• Match length to content. A practical guide often works better with 8 to 12 chapters of 1,500 to 2,500 words than with 25 short ones.
• Iterate. Read the plan and the first chapters of a short version, refine the brief, then use Recreate for the full book.

9. Troubleshooting

"Invalid API key" or "authentication" error

The key was revoked, mistyped or belongs to another provider. Create a new key, save it on the API Keys page, then click Resume on the status page.

Out of credit, quota or "insufficient balance"

Add credit or raise the limit in your provider account, then click Resume: chapters already written are kept.

Rate limit, timeout or "provider unavailable"

The provider is busy, or you are using a :free model with strict limits. Wait a few minutes and click Resume, or Recreate the book with a paid model.

The model is not in the list any more

Providers retire models. Use Recreate and choose another model.

The book stays "queued" for a long time

You can leave the page: the book appears in My eBooks when it is done. If it is still queued after 10 minutes, our team is alerted automatically; you can also write to us.

I didn't receive the confirmation email

Check spam and promotions folders. The link is valid for 1 hour; to get a new one, register again with the same email address (wait at least 10 minutes between attempts).

I forgot my password

Use Forgot password. Changing your password signs you out on your other devices.

Contact us

Questions, bugs or ideas: write to info@aiebooksuite.com. Including the date and the title of the book helps us find the problem quickly.