AI writing assistant that helps detect errors and improve content
Context-aware AI book editor for authors
Stage
Not given
Not given
Founded
Not given
Not given
Based in
LT
AT
Pricing model
Freemium
Freemium
Pricing
Not given
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
Generate drafts and rewrite sentences
Grammar and spelling correction
AI pattern detection with sentence-level analysis
Tone adjustment for different audiences
Make AI-generated text sound natural
Fact verification against reliable sources
Upload documents in multiple formats
Plagiarism detection
Text summarization
Word counter and punctuation corrector
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
All writing tools in one workspace without switching applications
Complete writing tasks 3x faster from draft to polished text
Manual review and improvement by professional editors
24/7 live support from real people
Analyzes over 18 billion webpages and private databases for verification
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
GetSolved
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