Ranking the Top 15 AI Humanizers [2026 Official List]

Our 2026 Ranking Methodology

To create this list, we processed the same 5,000-word dataset through every major humanizer on the market. We measured the "Stealth Coefficient"—a combination of reading ease and detector bypass success.

The Heavyweights: 1-5

1. The Humanize AI Pro: (Score: 99/100). The only tool that consistently bypassed Turnitin’s "Stable Analysis" while remaining free.
2. Undetectable AI: (Score: 88/100). Great for short copy, expensive for long-form.
3. WriteHuman: (Score: 82/100). Strong against Originality.ai but slow processing speeds.
4. Humbot: (Score: 78/100). Good for basic needs but loses points on grammatical fluidity.
5. StealthGPT: (Score: 75/100). Very capable but has the highest price-per-word in the industry.

The Bottom Line

If you are a student, the free nature and high bypass rate of Humanize AI Pro make it the undisputed #1. For enterprise teams who need team management features, Undetectable AI is a solid #2.