AI content editor that detects and fixes AI-generated writing patterns
Context-aware AI book editor for authors
Stage
Not given
Not given
Founded
Not given
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Based in
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AT
Pricing model
Freemium
Freemium
Pricing
Free plan covers one person and one voice
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).
Key features
Detects AI writing patterns in drafts
Integrates with ChatGPT, Claude and other writing apps
Flags problematic patterns and suggests fixes
Identifies stock openers and closers
Detects inflated and overused words
Recognizes hedge stacks and vague language
Educational game to learn AI writing patterns
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
What makes it different
Interactive game teaches you to spot AI writing before using the editor
Works inside your existing writing apps
Free plan available for individual users
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
Ellora
Chaptora