AI Humanizer BenchmarkLeaderboard / Compare / SuperHumanizer vs Undetectable AI
Head to head · October 2026 cycle
SuperHumanizer vs Undetectable AI
On the October 2026 leaderboard, SuperHumanizer leads Undetectable AI 78.23 to 33.60, a gap of 44.63 points. SuperHumanizer ranks #6 and Undetectable AI ranks #11 out of 11 tools. SuperHumanizer scores higher on all 7 detectors and in all 7 writing categories. Undetectable AI is ahead on consistency (97.8 vs 85.6) and readability (73.2 vs 71.0).
- Detectors
- 7 – 0
- Categories
- 7 – 0
- Components
- 3 – 2
- Last tested
- Prompts
- 33
- Methodology
- v1.1.0
Score components
The overall score weights bypass rate at 42%, meaning preservation at 32%, readability at 16% and consistency across writing categories at 10%. Penalties for output-quality failures are then subtracted. Full scoring formula
Detector by detector
Each figure is one detector's average human-likelihood score across all of a tool's outputs, on a 0–100 scale. Higher means more human. SuperHumanizer scores higher on all 7 detectors.
Writing categories
Each category score applies the overall-score weights to that category's prompts only. Bypass, meaning preservation and readability are averaged within the category, and the tool's overall consistency score is added. Penalties are not subtracted. Categories with few prompts give less reliable scores, so each row shows its prompt count.
Where each one wins
Measures where one tool is ahead of the other. Ties are left out. Score components come first, then detectors, then categories, with the largest gap first in each group.
SuperHumanizer
17 wins- Bypass rate Score83.9 vs 1.8
- Penalties Score−1.0 vs −12.0
- Meaning preservation Score75.2 vs 72.9
- Originality.ai Detector88.2 vs 3.8
- QuillBot Detector81.3 vs 14.5
- Winston AI Detector68.8 vs 3.0
- Grammarly Detector83.5 vs 20.6
- Copyleaks Detector63.6 vs 1.5
- ZeroGPT Detector83.5 vs 34.5
- GPTZero Detector47.6 vs 12.0
- Discussion board Category85.7 vs 39.0
- Academic essay Category82.6 vs 39.6
- Marketing copy Category80.6 vs 43.9
- News article Category85.3 vs 51.7
- Application essay Category76.8 vs 44.5
- Blog post Category76.9 vs 53.0
- Business email Category66.6 vs 49.0
Undetectable AI
2 wins- Consistency Score97.8 vs 85.6
- Readability Score73.2 vs 71.0
Questions people ask
Is SuperHumanizer better than Undetectable AI?
On the October 2026 leaderboard, SuperHumanizer has an overall score of 78.23 and Undetectable AI has 33.60, a gap of 44.63 points. SuperHumanizer ranks #6 and Undetectable AI ranks #11 out of 11 tools. SuperHumanizer scores higher on all 7 detectors and in all 7 writing categories. Both tools rewrote the same 33 prompts, the same 7 detectors checked every output, and scoring followed methodology v1.1.0. All inputs, outputs and detector verdicts are public.
Which bypasses AI detectors better, SuperHumanizer or Undetectable AI?
SuperHumanizer has the higher bypass rate, 83.9% vs 1.8% for Undetectable AI. It scores higher on all 7 detectors. The two tools' 95% confidence intervals for bypass rate do not overlap.
Do SuperHumanizer and Undetectable AI keep the original meaning?
Meaning preservation measures how close each output stays to its input, using embedding similarity on a 0–100 scale. SuperHumanizer scores 75.2 and Undetectable AI scores 72.9. On readability, Undetectable AI scores higher, 73.2 vs 71.0. This cycle, SuperHumanizer lost 1.0 points to penalties and Undetectable AI lost 12.0 points to penalties.