AI writing partner for fiction that helps novelists draft, describe, rewrite, and finish books while keeping their own voice
Stage
Not given
Established
Founded
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2020
Based in
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Pricing model
Freemium
Free trial
Pricing
Free: 100 credits at sign-up, topped up by 40 every week, 2 models per rewrite, 4 fast models including GPT-6 Luna, articles up to 6,000 words. Pro: $19 per month, 1,500 credits every month, up to 5 models per rewrite, all 9 models including Claude Sonnet 5.5 and Grok 4.7, articles up to 15,000 word
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Key features
Mark passages and add notes about what's wrong
Flip through rewrites from multiple AI models at once
Choose from 9 AI models including GPT-6 Luna, Claude Sonnet, and Grok
Preserve undo history and original drafts
Support for TipTap-based editors and built-in document editor
No need for personal API keys
Credit-based pricing with transparent cost estimates
Handle articles up to 6,000 words on Free plan or 15,000 on Pro
Access 2 models on Free plan or up to 5 on Pro plan
Write feature with style-matching suggestions for overcoming writer's block
Describe and Expand to turn sparse sentences into vivid sensory prose
Rewrite feature for revising and tightening prose without losing intent
Story Bible for maintaining character, world, and plot consistency across manuscripts
Canvas for visual story planning with outline templates
Chat for asking questions about your story grounded in Story Bible
Feedback feature providing five actionable areas for improvement
Visualize to generate character art from descriptions
What makes it different
Never leave your editor—rewrites happen in-place without copy-paste
Only the passages you mark change; the rest of your draft stays exactly as written
Compare rewrites from multiple AI models side by side in one click
Free plan with 100 credits and weekly top-ups, no card required
Preserves full undo history even after accepting rewrites
Proprietary Muse and Ballad AI models trained specifically for fiction
Built by writers for writers who understand storytelling craft
Keeps your unique voice instead of producing generic chatbot prose
Unlimited creative freedom including unfiltered writing of adult scenes
SwapDraft
Sudowrite