| What it does | AI humanizer for multilingual writing with best-in-class Japanese support
| AI-generated first drafts for novels, novellas, and short stories from your premise
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| Stage | Startup
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| Founded | 2026
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| Based in | HK
| US
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| Pricing model | Freemium
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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
| Short story: $3 (2–5 chapters, 2,000–10,000 words). Novella: $5 (5–12 chapters, 10,000–30,000 words). Novel: $10 (12–30 chapters, 30,000–90,000 words). Pro: $25/month with unlimited books and 500,000 chapter words per month. Free: world, cast, outline, and chapter one without a card.
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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
| - Build world, characters, voice, and outline for free before drafting begins
- First chapter free with no credit card required
- Export to PDF, DOCX, or Markdown formats
- Consistency checking via Driftlock to maintain plot and character facts
- Support for 11 genres including romance, sci-fi, thriller, and literary
- Edit world, characters, voice, and outline up until chapter generation starts
- Pro plan enables rewriting from any chapter without reprocessing prior chapters
- Generate stories in multiple genres and fiction types
- Monthly subscription with up to 500,000 chapter words
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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
| - Driftlock consistency system maintains character traits and plot facts across chapters
- Chapters written against outline with consistency checking to catch drift
- Edit and refine your story setup before any AI writing begins
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ● no change since last check | 11 ● no change since last check |
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| Trust Flow (Majestic) | 11 | 20 |
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| Citation Flow (Majestic) | 14 | 25 |
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| Referring domains (Majestic) | 46 | 68 |
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Suikou AI
skrivant