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Suikou AI vs ListOptix

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 ListOptix
DetailSuikou AI logo Suikou AIListOptix logo ListOptix
What it doesAI humanizer for multilingual writing with best-in-class Japanese support AI listing generator for Amazon, Etsy, eBay and Walmart
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 with daily check-in (+3 credits per day). Starter pack $2.99 USD for 30 credits (10 generates). Pro $29.99 USD per month for 360 credits (120 generates). Annual $299 USD per year for 4320 credits (1440 generates).
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
  • Generate titles, bullets and descriptions for Amazon, Etsy, eBay and Walmart
  • Upload product photos or paste facts
  • Platform-specific voice tuning
  • One-click copy to all four marketplaces
  • Multi-language output support
  • Free demo samples
  • Daily check-in credits
  • Search-ready Amazon titles and bullets
  • Character count tracking
  • Credits-based generation system
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
  • Channel-specific copy instead of generic dump
  • One input, four marketplace-optimized outputs
  • Affordable pay-as-you-go pricing from $2.99
  • Free daily credits through check-in system
  • Supports 13 languages for global sellers
Community votes00
DR (Domain Rating by Ahrefs)4 no change since last check4 +3 (up) since last check
Trust Flow (Majestic)110
Citation Flow (Majestic)1411
Referring domains (Majestic)461

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