| What it does | AI humanizer for multilingual writing with best-in-class Japanese support
| AI-powered grammar checker and writing assistant for clear, error-free communication
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| Stage | Startup
| Established
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| Founded | 2026
| 2018
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| Based in | HK
| US
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| Pricing model | Freemium
| 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 includes grammar and spelling checks, basic AI suggestions, limited paraphrasing, typing shortcuts, and browser extension. Linguix Pro costs $11.67/month (billed $140 annually) and includes advanced grammar and style suggestions, more AI-powered writing help, advanced paraphrasing, unlimit
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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
| - AI-based writing assistant with grammar, punctuation and style suggestions
- Text Rewriter to instantly rewrite sentences
- Content Quality Score analyzing sentence length and vocabulary complexity
- Intelligent shortcuts to reduce typing time by 90%
- Style Guides for consistent corporate communications
- Team Management with performance stats and employee activity reports
- Works across multiple platforms including Gmail, Google Docs, and millions of websites
- Advanced paraphrasing with tone, length, and clarity adjustments
- Priority support for Pro subscribers
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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
| - Supports six languages for global teams
- Rewriting technology makes sentences compelling and native-sounding
- Helps teams maintain brand voice consistency through shared style guides
- Available across multiple apps and devices with single account
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ● no change since last check | 65 ● no change since last check |
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| Trust Flow (Majestic) | 11 | 11 |
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| Citation Flow (Majestic) | 14 | 42 |
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| Referring domains (Majestic) | 46 | 1123 |
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Suikou AI
Linguix