AI Humanize io vs Grammarly
Head-to-head from the July 2026 cycle benchmark
Last tested
Sample size
33
Methodology
v1.2.0
Winner
59.66
overall
â–¼ 4
- Bypass
- 76.0
- Meaning
- 69.8
- Readability
- 55.7
53.38
overall
-
- Bypass
- 0.0
- Meaning
- 94.5
- Readability
- 82.1
Side-by-side metrics
Detector-level breakdown
Gold cell wins each row.
| Detector | AI Humanize io | Grammarly |
|---|---|---|
| GPTZero | 65.8 | 0.0 |
| Winston AI | 77.1 | 0.1 |
| ZeroGPT | 82.8 | 16.5 |
| Copyleaks | 72.7 | 0.0 |
| Originality.ai | 53.0 | 0.0 |
Minimum monthly pricing
AI Humanize io
$15.00/mo
- Free tier
- Yes
Grammarly
$30.00/mo
- Free tier
- Yes