| What it does | AI humanizer for multilingual writing with best-in-class Japanese support
| AI writing partner for fiction that helps novelists draft, describe, rewrite, and finish books while keeping their own voice
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| Stage | Startup
| Established
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| Founded | 2026
| 2020
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| Based in | HK
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| Pricing model | Freemium
| Free trial
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| Pricing | Free: 500 words/day humanize + unlimited detector (no credit card required); Basic: $9.99/month for 50,000 words/month + 30-day history + priority email support; Pro: $19.99/month for 250,000 words/month + academic mode + 90-day history + priority API queue. Student discount: 50% off annual plans wi
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| Key features | - AI text humanizer with casual, academic, and business modes
- Free AI content detector with ai_score, perplexity, and burstiness metrics
- Morphology-aware Japanese rewriting with conjugation and particle control
- Citation and technical term preservation in academic mode
- Three parallel rewrites scored by separate detector model
- Five-step intensity slider for faithfulness vs. AI-fingerprint tradeoff
- History and re-rewrite capability (30 or 90 days depending on plan)
- Second-pass academic polish with Claude 3.5 Haiku on Pro plan
- Support for English, Japanese, Korean, German, French, Spanish, Portuguese, and Chinese
- Tested against GPTZero, Turnitin, Originality.ai, and Copyleaks
| - 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
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| What makes it different | - Best-in-class Japanese support with morphology-aware morpheme-level tuning, unlike generic humanizers
- Separate AI detector scores rewrites to guarantee the most natural result
- Preserves academic citations, figures, tables, and technical terminology verbatim
- Five-step granular intensity control to trade off faithfulness versus AI-fingerprint removal
- Independent developer with transparent privacy: no model training on user text, fixed deletion schedule
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ● no change since last check | 73 ● no change since last check |
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| Trust Flow (Majestic) | 11 | 29 |
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| Citation Flow (Majestic) | 14 | 47 |
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| Referring domains (Majestic) | 46 | 4731 |
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Suikou AI
Sudowrite