AI Humanizer BenchmarkLeaderboard / Compare / SuperHumanizer vs Undetectable AI
Head to head · September 2026 cycle
SuperHumanizer vs Undetectable AI
SuperHumanizer finished 30.3 points ahead of Undetectable AI in the September 2026 cycle, 68.50 to 38.20, ranking #8 against #11 in a field of 11. SuperHumanizer scored higher on 7 of 7 detectors and 7 of 7 writing categories. Undetectable AI came out ahead on Consistency (99.6 vs 72.8), Meaning preservation (89.6 vs 77.3).
- Detectors
- 7 – 0
- Categories
- 7 – 0
- Components
- 3 – 2
- Last tested
- 2026-09-03
- Prompts
- 33
- Methodology
- v1.0.0
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
Detector by detector
Share of each tool's outputs that a detector classified as human-written. SuperHumanizer took 7 of 7.
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.
Where each one wins
Every measure above that one tool won outright, largest margin first within each group.
SuperHumanizer
17 wins- Bypass rate Score70.7 vs 0.2
- Penalties Score−5.0 vs −12.0
- Readability Score74.0 vs 71.7
- Grammarly Detector76.8 vs 18.5
- QuillBot Detector74.6 vs 16.6
- GPTZero Detector64.0 vs 6.1
- ZeroGPT Detector78.7 vs 26.5
- Winston AI Detector52.3 vs 0.1
- Copyleaks Detector51.4 vs 0.0
- Originality.ai Detector50.8 vs 0.0
- Academic essay Category82.4 vs 48.0
- News article Category85.5 vs 51.6
- Discussion board Category81.3 vs 50.8
- Marketing copy Category77.6 vs 50.9
- Application essay Category64.5 vs 47.8
- Blog post Category68.1 vs 52.9
- Business email Category57.1 vs 50.9
Undetectable AI
2 wins- Consistency Score99.6 vs 72.8
- Meaning preservation Score89.6 vs 77.3
Questions people ask
Is SuperHumanizer better than Undetectable AI?
SuperHumanizer finished 30.3 points ahead of Undetectable AI in the September 2026 cycle, 68.50 to 38.20, ranking #8 against #11 in a field of 11. SuperHumanizer scored higher on 7 of 7 detectors and 7 of 7 writing categories. Both tools ran the same 33 prompts, scored by the same 7 detectors, under methodology v1.0.0; every input, output, and verdict is published.
Which bypasses AI detectors better, SuperHumanizer or Undetectable AI?
SuperHumanizer posted the higher bypass rate, 70.7 vs 0.2, and scored higher on 7 of 7 detectors. SuperHumanizer led on GPTZero, Winston AI, Originality.ai, ZeroGPT, Grammarly, QuillBot and Copyleaks; Undetectable AI led on none. The gap holds outside both tools' 95% confidence intervals.
Do SuperHumanizer and Undetectable AI keep the original meaning?
Undetectable AI preserved meaning better, 89.6 vs 77.3 on our 0–100 similarity scale. On readability, SuperHumanizer rated higher, 74.0 vs 71.7. Penalties this cycle: SuperHumanizer −5.0, Undetectable AI −12.0.