Suikou AI vs TextToHuman

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Suikou AI compared with TextToHuman
Detail	Suikou AI	TextToHuman
What it does	AI humanizer for multilingual writing with best-in-class Japanese support	Not given
Stage	Startup	Startup
Founded	2026	2025
Based in	HK	Not given
Pricing model	Freemium	Not given
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 tier with no limits. Paid plans: Day Pass $9.99 (24-hour one-time payment, up to 25,000 words), Pro $6/month when billed annually at $72 (up to 50,000 words/month), Unlimited $15/month when billed annually at $180 (no monthly word limit, 30,000 words/day fair use limit).
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	Autopilot mode for automatic rewriting until detection passes Sentence-level alternatives for manual refinement Preserve Formatting mode for document structure Two humanization models: Premium and Stealth Full history and cloud save for paid users Plagiarism checker tool
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	Trained on 30 million real human writing samples from academia, blogs, and professional sources Seven versions of refinement with continuous improvement
Community votes	0	0
DR (Domain Rating by Ahrefs)	4 no change since last check	48 −1 (down) since last check
Trust Flow (Majestic)	11	25
Citation Flow (Majestic)	14	32
Referring domains (Majestic)	46	311

5 details filled in for both companies.

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