| What it does | AI humanizer for multilingual writing with best-in-class Japanese support
| AI workspace for academic writing and research
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| Stage | Startup
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| Founded | 2026
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| Based in | HK
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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
| Free plan at $0/month includes 10 AI Autocompletes per day, 10 PDF uploads, 3 AI Edits, 5 AI Chat messages, 3 Reviews, 3 Workflow runs, unlimited citations, and access to 10,000+ citation styles. Plus plan at $12/month includes 5,000 Autocompletes per month, unlimited PDF uploads, 500 AI Edits per m
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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
| - Import and organize sources from PDFs, Zotero, and Mendeley
- AI-powered autocomplete suggestions grounded in source papers
- Search 248 million academic papers
- Reviews feature to analyze and verify claims
- Real-time collaboration with comments and version history
- Export to multiple formats including .docx, LaTeX, and HTML
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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
| - Every claim tied to source documents with clear references, unlike ChatGPT
- Builds arguments strictly from user-selected sources, not general training data
- Purpose-built workspace with structured outlining and editing tools
- Reviews feature flags unverified claims before peer review submission
- Access to 248 million academic papers within the editor
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ● no change since last check | 72 ● no change since last check |
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| Trust Flow (Majestic) | 11 | 18 |
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| Citation Flow (Majestic) | 14 | 43 |
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| Referring domains (Majestic) | 46 | 3263 |
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Suikou AI
Jenni