Head to head · September 2026 cycle
Humanize AI Pro vs SupWriter
SupWriter finished 2.7 points ahead of Humanize AI Pro in the September 2026 cycle, 72.80 to 70.07, ranking #5 against #7 in a field of 14. SupWriter scored higher on 3 of 5 detectors and 5 of 7 writing categories. Humanize AI Pro came out ahead on GPTZero (58.3 vs 21.0), readability (61.8 vs 45.7) and Originality.ai (86.8 vs 78.5). The bypass-rate gap, 70.8 to 80.3, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.
- Detectors
- 2 – 3
- Categories
- 2 – 5
- Components
- 2 – 2 (1 tie)
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. SupWriter took 3 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.
Humanize AI Pro
6 wins- Readability Score 61.8 vs 45.7
- Consistency Score 65.3 vs 64.7
- GPTZero Detector 58.3 vs 21.0
- Originality.ai Detector 86.8 vs 78.5
- Discussion Board Category 81.2 vs 78.0
- Academic Essay Category 82.5 vs 79.7
SupWriter
10 wins- Bypass rate Score 80.3 vs 70.8
- Meaning preservation Score 79.0 vs 74.7
- Copyleaks Detector 85.3 vs 53.5
- Winston AI Detector 81.5 vs 70.2
- ZeroGPT Detector 77.9 vs 74.0
- News Article Category 81.1 vs 66.8
- Application Essay Category 67.1 vs 60.4
- Marketing Copy Category 81.3 vs 76.7
- Blog Post Category 78.4 vs 76.0
- Business Email Category 38.7 vs 37.2
Questions people ask
Is Humanize AI Pro better than SupWriter?
SupWriter finished 2.7 points ahead of Humanize AI Pro in the September 2026 cycle, 72.80 to 70.07, ranking #5 against #7 in a field of 14. SupWriter scored higher on 3 of 5 detectors and 5 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, Humanize AI Pro or SupWriter?
SupWriter posted the higher bypass rate, 80.3 vs 70.8, and scored higher on 3 of 5 detectors. Humanize AI Pro led on GPTZero and Originality.ai; SupWriter led on Copyleaks, Winston AI and ZeroGPT. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.
Do Humanize AI Pro and SupWriter keep the original meaning?
SupWriter preserved meaning better, 79.0 vs 74.7 on our 0–100 similarity scale, though the confidence intervals overlap. On readability, Humanize AI Pro rated higher, 61.8 vs 45.7. Neither tool drew an output-quality penalty this cycle.