AI Humanizer BenchmarkLeaderboard / Compare / CleverHumanizer vs SmartHumanizer
Head to head · October 2026 cycle
CleverHumanizer vs SmartHumanizer
On the October 2026 leaderboard, SmartHumanizer leads CleverHumanizer 80.20 to 68.06, a gap of 12.14 points. SmartHumanizer ranks #4 and CleverHumanizer ranks #8 out of 11 tools. SmartHumanizer scores higher on 2 of 7 detectors and in 6 of 7 writing categories. CleverHumanizer is ahead on bypass rate (85.9% vs 78.2%), GPTZero (78.3 vs 28.3) and Winston AI (85.2 vs 60.0). The two tools' 95% confidence intervals for bypass rate overlap, so that difference is not statistically clear.
- Detectors
- 5 – 2
- Categories
- 1 – 6
- Components
- 1 – 4
- 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
Overlapping CIs means the two tools' 95% confidence intervals for bypass rate overlap, so the bypass difference is not statistically clear.
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. CleverHumanizer scores higher on 5 of 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.
CleverHumanizer
7 wins- Bypass rate Score85.9 vs 78.2
- GPTZero Detector78.3 vs 28.3
- Winston AI Detector85.2 vs 60.0
- Originality.ai Detector93.8 vs 82.9
- Grammarly Detector88.2 vs 81.6
- ZeroGPT Detector78.1 vs 77.1
- Blog post Category85.1 vs 72.2
SmartHumanizer
12 wins- Meaning preservation Score82.9 vs 65.5
- Penalties ScoreNone vs −9.0
- Consistency Score84.3 vs 77.3
- Readability Score77.5 vs 76.8
- QuillBot Detector80.4 vs 76.9
- Copyleaks Detector72.7 vs 69.7
- Business email Category74.5 vs 62.3
- Discussion board Category88.6 vs 79.3
- Academic essay Category87.6 vs 79.7
- Application essay Category75.6 vs 70.2
- Marketing copy Category81.4 vs 77.1
- News article Category85.4 vs 81.8
Questions people ask
Is CleverHumanizer better than SmartHumanizer?
On the October 2026 leaderboard, SmartHumanizer has an overall score of 80.20 and CleverHumanizer has 68.06, a gap of 12.14 points. SmartHumanizer ranks #4 and CleverHumanizer ranks #8 out of 11 tools. SmartHumanizer scores higher on 2 of 7 detectors and in 6 of 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, CleverHumanizer or SmartHumanizer?
CleverHumanizer has the higher bypass rate, 85.9% vs 78.2% for SmartHumanizer. CleverHumanizer scores higher on GPTZero, Winston AI, Originality.ai, ZeroGPT and Grammarly. SmartHumanizer scores higher on QuillBot and Copyleaks. The two tools' 95% confidence intervals for bypass rate overlap, so the difference is not statistically clear.
Do CleverHumanizer and SmartHumanizer keep the original meaning?
Meaning preservation measures how close each output stays to its input, using embedding similarity on a 0–100 scale. SmartHumanizer scores 82.9 and CleverHumanizer scores 65.5. On readability, SmartHumanizer scores higher, 77.5 vs 76.8. This cycle, CleverHumanizer lost 9.0 points to penalties and SmartHumanizer had no penalties.