Skip to the shop floor

Suikou AI vs Mastheads™

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 Mastheads™
DetailSuikou AI logo Suikou AIMastheads™ logo Mastheads™
What it doesAI humanizer for multilingual writing with best-in-class Japanese support Source-backed articles with real bylines and fact-checking
StageStartup Not given
Founded2026 Not given
Based inHK Not given
Pricing modelFreemium Freemium
PricingFree: 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 trial: 7 days, 10 articles, no card required. Starter: $83/month (introductory price, standard $124/month), 40 articles/month, up to 3 sites, billed annually. Growth: $208/month (introductory price, standard $333/month), 120 articles/month, up to 10 sites, billed annually. Pro: $499/month (intr
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
  • Ten editorial desks that research, write, fact-check and publish
  • Source-backed writing with inline citations
  • AI fact-checking against actual sources fetched
  • Named editor of record on every article
  • AI-generated original cover images
  • CMS integration with WordPress, Ghost, Webflow, Shopify, HubSpot, GoHighLevel
  • Publish on your own schedule with review-by-default
  • Multi-language support with native local registers
  • Content API with export options
  • Topic research and story discovery
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
  • Autonomous publishing with human editorial control and named bylines
  • Every claim fact-checked against sources actually fetched, not guessed
  • Customer owns all content outright with no lock-in
  • No paywall scraping or deliberate defeats of access controls
Community votes00
DR (Domain Rating by Ahrefs)4 no change since last check5 no change since last check
Trust Flow (Majestic)1110
Citation Flow (Majestic)1429
Referring domains (Majestic)4681

5 details filled in for both companies.

More alternatives to Suikou AI More alternatives to Mastheads™

Support