Suikou AI Pricing

Pricing

Start free. Upgrade when you need more. Best-in-class Japanese support included on every plan.

Free

$0 / month
Try AI writing naturalization at no cost.
No credit card required.

Includes

  • 500 words / day humanize
  • Unlimited AI detector usage
  • casual / academic / business modes
  • Same-day history only
Popular

Basic

$9.99 / month
Monthly humanizer for theses, essays, and conference papers.
Cancel any time.

Everything in Free, plus

  • 50,000 words / month humanize
  • 30-day history
  • Best-in-class Japanese morphology support
  • Priority email support

Pro

$19.99 / month
Built for SCI submissions and dissertation-grade output.
Cancel any time between submission cycles.

Everything in Basic, plus

  • 250,000 words / month humanize
  • Academic mode (Claude 3.5 Haiku second-pass refine)
  • Citation, figure, and term-of-art protection
  • 90-day history
  • Priority API queue
Pricing