AI Humanizer BenchmarkLeaderboard / Compare / GPTinf vs SuperHumanizer
Head to head · October 2026 cycle
GPTinf vs SuperHumanizer
On the October 2026 leaderboard, GPTinf leads SuperHumanizer 80.74 to 78.23, a gap of 2.51 points. GPTinf ranks #3 and SuperHumanizer ranks #6 out of 11 tools. GPTinf scores higher on 6 of 7 detectors and in 4 of 7 writing categories. SuperHumanizer is ahead on meaning preservation (75.2 vs 68.3), Copyleaks (63.6 vs 57.6) and discussion board (85.7 vs 84.0). On bypass rate, SuperHumanizer scores 83.9% and GPTinf scores 88.7%, but their 95% confidence intervals overlap, so that difference is not statistically clear.
- Detectors
- 6 – 1
- Categories
- 4 – 3
- Components
- 4 – 1
- 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. GPTinf scores higher on 6 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.
GPTinf
14 wins- Readability Score77.7 vs 71.0
- Consistency Score92.1 vs 85.6
- Bypass rate Score88.7 vs 83.9
- Penalties ScoreNone vs −1.0
- Winston AI Detector89.1 vs 68.8
- GPTZero Detector55.1 vs 47.6
- QuillBot Detector86.4 vs 81.3
- Grammarly Detector88.4 vs 83.5
- Originality.ai Detector92.2 vs 88.2
- ZeroGPT Detector84.5 vs 83.5
- Business email Category79.2 vs 66.6
- Application essay Category79.7 vs 76.8
- Blog post Category77.6 vs 76.9
- Marketing copy Category81.1 vs 80.6
SuperHumanizer
5 wins- Meaning preservation Score75.2 vs 68.3
- Copyleaks Detector63.6 vs 57.6
- Discussion board Category85.7 vs 84.0
- News article Category85.3 vs 84.1
- Academic essay Category82.6 vs 81.9
Questions people ask
Is GPTinf better than SuperHumanizer?
On the October 2026 leaderboard, GPTinf has an overall score of 80.74 and SuperHumanizer has 78.23, a gap of 2.51 points. GPTinf ranks #3 and SuperHumanizer ranks #6 out of 11 tools. GPTinf scores higher on 6 of 7 detectors and in 4 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, GPTinf or SuperHumanizer?
GPTinf has the higher bypass rate, 88.7% vs 83.9% for SuperHumanizer. GPTinf scores higher on GPTZero, Winston AI, Originality.ai, ZeroGPT, Grammarly and QuillBot. SuperHumanizer scores higher on Copyleaks. The two tools' 95% confidence intervals for bypass rate overlap, so the difference is not statistically clear.
Do GPTinf and SuperHumanizer 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 GPTinf scores 68.3. On readability, GPTinf scores higher, 77.7 vs 71.0. This cycle, GPTinf had no penalties and SuperHumanizer lost 1.0 points to penalties.