Penlify vs StealthBypass
Head-to-head from the September 2026 cycle benchmark
Last tested
Prompts
33
Methodology
v1.2.0
Winner
39.38
overall
-
- Bypass
- 78.6
- Meaning
- 39.5
- Readability
- 54.1
Side-by-side metrics
Detector-level breakdown
Gold cell wins each row.
| Detector | Penlify | StealthBypass |
|---|---|---|
| GPTZero | 0.0 | 69.3 |
| Winston AI | 0.4 | 56.3 |
| ZeroGPT | 43.0 | 84.4 |
| Copyleaks | 0.0 | 65.1 |
| Originality.ai | 0.0 | 58.5 |
Minimum monthly pricing
Penlify
$2.99/mo
- Free tier
- Yes
StealthBypass
$4.99/mo
- Free tier
- Yes