Head to head · September 2026 cycle
StealthBypass vs StealthGPT
StealthGPT finished 25.7 points ahead of StealthBypass in the September 2026 cycle, 65.10 to 39.38, ranking #9 against #13 in a field of 14. StealthGPT scored higher on 4 of 5 detectors and 7 of 7 writing categories. StealthBypass came out ahead on consistency across categories (80.7 vs 63.1) and ZeroGPT (84.4 vs 68.9). The bypass-rate gap, 78.6 to 79.6, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.
- Detectors
- 1 – 4
- Categories
- 0 – 7
- Components
- 1 – 4
Score components
What the overall score is made of: bypass rate weighs 42%, meaning preservation 32%, readability 16%, consistency across categories 10%. Output-quality penalties come off the total. How scoring works →
CIs overlap marks a gap that sits inside both tools' published 95% confidence intervals for that component; it may not survive another cycle.
Detector by detector
Share of each tool's outputs that a detector classified as human-written. StealthGPT took 4 of 5.
Writing categories
Category score per writing context: bypass credit only for real rewrites, blended with the category's own meaning preservation and readability. Small categories swing; the prompt count is shown on each row. How category scores work →
Where each one wins
Every measure above that one tool won outright, largest margin first within each group.
StealthBypass
2 wins- Consistency Score 80.7 vs 63.1
- ZeroGPT Detector 84.4 vs 68.9
StealthGPT
15 wins- Penalties Score −5.0 vs −23.0
- Meaning preservation Score 59.4 vs 39.5
- Readability Score 70.9 vs 54.1
- Bypass rate Score 79.6 vs 78.6
- Originality.ai Detector 89.5 vs 58.5
- Copyleaks Detector 81.8 vs 65.1
- Winston AI Detector 66.6 vs 56.3
- GPTZero Detector 77.4 vs 69.3
- Marketing Copy Category 73.1 vs 18.9
- Academic Essay Category 79.4 vs 39.9
- and 5 more
Questions people ask
Is StealthBypass better than StealthGPT?
StealthGPT finished 25.7 points ahead of StealthBypass in the September 2026 cycle, 65.10 to 39.38, ranking #9 against #13 in a field of 14. StealthGPT scored higher on 4 of 5 detectors and 7 of 7 writing categories. Both tools ran the same 33 prompts, scored by the same 5 detectors, under methodology v1.2.0; every input, output and verdict is published.
Which bypasses AI detectors better, StealthBypass or StealthGPT?
StealthGPT posted the higher bypass rate, 79.6 vs 78.6, and scored higher on 4 of 5 detectors. StealthBypass led on ZeroGPT; StealthGPT led on GPTZero, Originality.ai, Copyleaks and Winston AI. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.
Do StealthBypass and StealthGPT keep the original meaning?
StealthGPT preserved meaning better, 59.4 vs 39.5 on our 0–100 similarity scale. On readability, StealthGPT rated higher, 70.9 vs 54.1. Penalties this cycle: StealthBypass −23.0, StealthGPT −5.0.