| What it does | AI-generated first drafts for novels, novellas, and short stories from your premise
| Context-aware AI book editor for authors
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| Stage | Not given
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| Founded | Not given
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| Based in | US
| AT
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| Pricing model | Not given
| Freemium
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| Pricing | Short story: $3 (2–5 chapters, 2,000–10,000 words). Novella: $5 (5–12 chapters, 10,000–30,000 words). Novel: $10 (12–30 chapters, 30,000–90,000 words). Pro: $25/month with unlimited books and 500,000 chapter words per month. Free: world, cast, outline, and chapter one without a card.
| Octavo: Free forever (1 project, 3 research files, limited AI usage). Quarto: $20/month or $200/year (unlimited projects, 50 files per project, 10× more AI usage). Folio: $100/month or $1,000/year (unlimited research files, 5× more AI usage than Quarto, priority queue, early access to new models).
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| Key features | - Build world, characters, voice, and outline for free before drafting begins
- First chapter free with no credit card required
- Export to PDF, DOCX, or Markdown formats
- Consistency checking via Driftlock to maintain plot and character facts
- Support for 11 genres including romance, sci-fi, thriller, and literary
- Edit world, characters, voice, and outline up until chapter generation starts
- Pro plan enables rewriting from any chapter without reprocessing prior chapters
- Generate stories in multiple genres and fiction types
- Monthly subscription with up to 500,000 chapter words
| - Context-aware AI suggestions that read your chapters first
- Source-grounded edits from PDFs, URLs, and YouTube transcripts
- Red and green diffs requiring your approval
- Export to Amazon KDP, Apple Books, Lulu, IngramSpark, Google Play Books, Draft2Digital
- Chapter-aware AI agent
- Citation engine with Chicago-formatted bibliography
- Front matter and back matter editor
- Version history to save and restore manuscript versions
- Clean PDF and EPUB export with professional typography
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| What makes it different | - Driftlock consistency system maintains character traits and plot facts across chapters
- Chapters written against outline with consistency checking to catch drift
- Edit and refine your story setup before any AI writing begins
| - Keeps your entire book and research in context, unlike chat windows that start fresh each session
- Returns edits as approvable diffs you control, not auto-inserted changes
- Built specifically for book publishing with real front matter, back matter, and professional export formats
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 11 ▲ +3 (up) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 20 | 4 |
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| Citation Flow (Majestic) | 25 | 22 |
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| Referring domains (Majestic) | 68 | 7 |
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skrivant
Chaptora