Undetectable.ai vs WriteHuman
Head-to-head from the July 2026 cycle benchmark
Last tested
Sample size
33
Methodology
v1.2.0
Winner
73.07
overall
â–² 1
- Bypass
- 81.6
- Meaning
- 72.9
- Readability
- 56.2
72.17
overall
â–² 3
- Bypass
- 95.7
- Meaning
- 73.0
- Readability
- 55.9
Side-by-side metrics
Detector-level breakdown
Gold cell wins each row.
| Detector | Undetectable.ai | WriteHuman |
|---|---|---|
| GPTZero | 94.1 | 60.8 |
| Winston AI | 90.9 | 86.2 |
| ZeroGPT | 90.4 | 88.6 |
| Copyleaks | 65.6 | 61.0 |
| Originality.ai | 66.5 | 53.5 |
Minimum monthly pricing
Undetectable.ai
$19.00/mo
- Free tier
- Yes
WriteHuman
$18.00/mo
- Free tier
- Yes