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Suikou AI vs GoodTrans

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 GoodTrans
DetailSuikou AI logo Suikou AIGoodTrans logo GoodTrans
What it doesAI humanizer for multilingual writing with best-in-class Japanese support Publication-grade document translation with editable delivery, terminology control, and quality reports
StageStartup Not given
Founded2026 Not given
Based inHK Not given
Pricing modelFreemium Not given
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 One-time credit packages: 20K Credits for $9.9 (≈$0.50/1,000 words), 80K Credits for $29.9 (≈$0.37/1,000 words), 300K Credits for $99.9 (≈$0.33/1,000 words). New accounts receive 10,000 trial credits valid for 30 days. Paid credits valid 365 days. No subscription required; failed tasks refunded auto
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
  • Long document support for TXT, Markdown, and PDF files up to 50MB
  • 100+ language support including hard-to-source languages
  • Editable Markdown and TXT output files
  • Bilingual review file for side-by-side comparison
  • Document-level quality report with terminology and structure checks
  • Terminology glossary and consistency controls
  • Asynchronous email delivery with no browser tab needed
  • Credit cost estimate before task submission
  • Automatic refund if task fails
  • Support for multiple document purposes and target locales
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
  • Async workflow designed for document delivery, not chat-based interaction
  • Quality report included with terminology checks and consistency scores
  • Transparent credit-based pricing with upfront cost estimates
  • One-time payment model with no subscription required
  • Built independently with public production data and transparency about failures
Community votes00
DR (Domain Rating by Ahrefs)4 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)110
Citation Flow (Majestic)1415
Referring domains (Majestic)465

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