AI Humanizer BenchmarkLeaderboard / Compare / AI Humanize vs Undetectable AI
Head to head · October 2026 cycle
AI Humanize vs Undetectable AI
On the October 2026 leaderboard, AI Humanize leads Undetectable AI 78.33 to 33.60, a gap of 44.73 points. AI Humanize ranks #5 and Undetectable AI ranks #11 out of 11 tools. AI Humanize scores higher on all 7 detectors and in all 7 writing categories. Undetectable AI is ahead on consistency (97.8 vs 89.3), meaning preservation (72.9 vs 66.4) and readability (73.2 vs 72.1).
- Detectors
- 7 – 0
- Categories
- 7 – 0
- Components
- 2 – 3
- 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. AI Humanize 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.
AI Humanize
16 wins- Bypass rate Score89.5 vs 1.8
- Penalties Score−1.0 vs −12.0
- Winston AI Detector86.5 vs 3.0
- Originality.ai Detector85.5 vs 3.8
- QuillBot Detector88.0 vs 14.5
- Copyleaks Detector72.7 vs 1.5
- Grammarly Detector91.1 vs 20.6
- ZeroGPT Detector85.7 vs 34.5
- GPTZero Detector40.9 vs 12.0
- Academic essay Category84.2 vs 39.6
- Discussion board Category83.1 vs 39.0
- Marketing copy Category79.2 vs 43.9
- News article Category81.6 vs 51.7
- Application essay Category73.5 vs 44.5
- Business email Category77.2 vs 49.0
- Blog post Category78.5 vs 53.0
Undetectable AI
3 wins- Consistency Score97.8 vs 89.3
- Meaning preservation Score72.9 vs 66.4
- Readability Score73.2 vs 72.1
Questions people ask
Is AI Humanize better than Undetectable AI?
On the October 2026 leaderboard, AI Humanize has an overall score of 78.33 and Undetectable AI has 33.60, a gap of 44.73 points. AI Humanize ranks #5 and Undetectable AI ranks #11 out of 11 tools. AI Humanize 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, AI Humanize or Undetectable AI?
AI Humanize has the higher bypass rate, 89.5% 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 AI Humanize 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. Undetectable AI scores 72.9 and AI Humanize scores 66.4. On readability, Undetectable AI scores higher, 73.2 vs 72.1. This cycle, AI Humanize lost 1.0 points to penalties and Undetectable AI lost 12.0 points to penalties.