Free: 3 generations per day. Starter: $5 for 25 credits. Writer: $12 for 75 credits. Novelist: $25 for 175 credits. One-time payments, no subscription.
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
Generate complete fanfiction scenes with fandom, characters and tropes
Write 3 free short scenes daily without sign-up or credit card
Support for any fandom including anime, books, games, movies and TV
Pick from multiple tone options including fluff, angst and humor
Generate with AO3-style title, rating, summary and tags
General and Teen And Up ratings only, no explicit content
Choose point of view: first, third or second person
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
Free without requiring account creation or credit card
Simplified interface compared to writing detailed prompts for general AI chatbots
One-time credit purchases with no subscription required
Credits never expire
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