| What it does | AI writing tool for character headcanons and scene ideas
| 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 | Not given
| AT
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: 50 welcome Sparks for 7 days (up to 5 standard generations). Spark Pack 500: $4.90 (up to 50 standard generations, valid 365 days). Spark Pack Plus 2,000: $14.90 (up to 200 standard generations, 24% less per Spark, valid 365 days).
| 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 | - Generate structured headcanon ideas with premise, emotional logic, and scene hooks
- Reroll and rewrite generations with 3 Sparks per rewrite
- Save and share headcanons through public share links
- Preset prompt angles for common fandom scenarios
- Control panel for tone, angles, and canon distance customization
- Generate multiple tones for the same character premise
- Account-based result storage with persistent access after Sparks expire
| - 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 | - Templates and tone control built specifically for headcanon generation instead of generic chat
- Reusable, structured output designed to be saved and shared with fandom communities
- Emotional logic and expandable details for turning ideas into finished fic
- Specialized for fandom writers with existing character tension and ships
- Focused text-based generation rather than image generation
| - 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) | 10 ▲ +1 (up) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 4 |
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| Citation Flow (Majestic) | 28 | 22 |
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| Referring domains (Majestic) | 21 | 7 |
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Margo
Chaptora