Undetectable.ai vs WriteHuman
Head-to-head from the August 2026 cycle benchmark
Last tested
Sample size
33
Methodology
v1.2.0
61.49
overall
â–¼ 6
- Bypass
- 86.0
- Meaning
- 72.1
- Readability
- 55.2
Side-by-side metrics
Detector-level breakdown
Gold cell wins each row.
| Detector | Undetectable.ai | WriteHuman |
|---|---|---|
| GPTZero | 86.6 | 88.4 |
| Winston AI | 87.5 | 83.8 |
| ZeroGPT | 89.8 | 84.7 |
| Copyleaks | 65.3 | 67.1 |
| Originality.ai | 66.1 | 66.5 |
Minimum monthly pricing
Undetectable.ai
$19.00/mo
- Free tier
- Yes
WriteHuman
$18.00/mo
- Free tier
- Yes