$39 a month (launch price for first 100 seats), then $59, then $79. Team plan: $149 a month for 5 people, $29 per extra person. 7-day free trial with card required.
Core Plan: $19/month (200,000 words of editing per month, limited rewriting ability). Pro Plan: $29/month (300,000 words of editing per month, able to rewrite entire chapters and books). A one-time free word sample is available for new accounts.
Key features
Voice profile learned from your own posts
Interview-based fact gathering
Six editorial checks before publishing
Typeset cards and carousels
Story Bank for facts and stories
Commenter sorting by buyer type
Approval queue for posts, replies and comments
Integration with Claude, ChatGPT and Cursor
Weekly review vs your usual posts
Chrome extension
Sentence-level literary feedback
Paragraph-level literary feedback
Passage-level literary feedback in context
Chapter-level literary feedback in context
Book-level literary feedback in entire context
One-click text rewriting with AI
Entire chapter rewriting on Pro Plan
Entire book rewriting on Pro Plan
300,000-word context window on Pro Plan
Progressive learning through interactive Q&A
What makes it different
Drafts in your established voice instead of sounding generated
Requires human approval for every post before publishing
Facts checked and traced to sources or your Story Bank
Learns from your own posts, not generic templates
Human book editors charge thousands but AI Book Editor starts at $19 per month
Gives almost immediate feedback while human editors take weeks
300,000-word context window three times more than average novel
All output belongs 100% to the user for commercial use
Kalamos
AI Book Editor