AI Humanize io vs Grammarly
Head-to-head from the August 2026 cycle benchmark
Last tested
Sample size
33
Methodology
v1.2.0
Winner
64.57
overall
â–² 4
- Bypass
- 70.8
- Meaning
- 64.4
- Readability
- 54.6
52.91
overall
â–² 1
- Bypass
- 0.0
- Meaning
- 94.3
- Readability
- 79.5
Side-by-side metrics
Detector-level breakdown
Gold cell wins each row.
| Detector | AI Humanize io | Grammarly |
|---|---|---|
| GPTZero | 54.4 | 1.9 |
| Winston AI | 80.7 | 0.1 |
| ZeroGPT | 85.5 | 13.7 |
| Copyleaks | 63.7 | 0.0 |
| Originality.ai | 40.1 | 0.0 |
Minimum monthly pricing
AI Humanize io
$15.00/mo
- Free tier
- Yes
Grammarly
$30.00/mo
- Free tier
- Yes