AI Humanizer BenchmarkLeaderboard / Compare / ReHumanize vs UndetectedGPT
Head to head · September 2026 cycle
ReHumanize vs UndetectedGPT
UndetectedGPT finished 45.9 points ahead of ReHumanize in the September 2026 cycle, 84.90 to 39.00, ranking #1 against #10 in a field of 11. UndetectedGPT scored higher on 7 of 7 detectors and 7 of 7 writing categories. ReHumanize came out ahead on Readability (81.4 vs 77.3), Consistency (95.1 vs 91.5).
- Detectors
- 0 – 7
- Categories
- 0 – 7
- Components
- 2 – 3
- 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. UndetectedGPT 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.
ReHumanize
2 wins- Readability Score81.4 vs 77.3
- Consistency Score95.1 vs 91.5
UndetectedGPT
17 wins- Bypass rate Score86.3 vs 3.7
- Meaning preservation Score84.8 vs 59.2
- Penalties ScoreNone vs −4.0
- Originality.ai Detector79.2 vs 0.1
- GPTZero Detector80.0 vs 5.7
- QuillBot Detector92.7 vs 21.9
- Winston AI Detector54.4 vs 0.0
- ZeroGPT Detector85.1 vs 32.6
- Grammarly Detector89.3 vs 64.2
- Copyleaks Detector21.2 vs 3.0
- Discussion board Category90.3 vs 38.9
- Academic essay Category89.2 vs 38.1
- Application essay Category86.2 vs 42.0
- News article Category85.9 vs 43.4
- Marketing copy Category85.8 vs 44.6
- Business email Category79.7 vs 47.1
- Blog post Category77.6 vs 47.2
Questions people ask
Is ReHumanize better than UndetectedGPT?
UndetectedGPT finished 45.9 points ahead of ReHumanize in the September 2026 cycle, 84.90 to 39.00, ranking #1 against #10 in a field of 11. UndetectedGPT 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, ReHumanize or UndetectedGPT?
UndetectedGPT posted the higher bypass rate, 86.3 vs 3.7, and scored higher on 7 of 7 detectors. ReHumanize led on none; UndetectedGPT led on GPTZero, Winston AI, Originality.ai, ZeroGPT, Grammarly, QuillBot and Copyleaks. The gap holds outside both tools' 95% confidence intervals.
Do ReHumanize and UndetectedGPT keep the original meaning?
UndetectedGPT preserved meaning better, 84.8 vs 59.2 on our 0–100 similarity scale. On readability, ReHumanize rated higher, 81.4 vs 77.3. Penalties this cycle: ReHumanize −4.0, UndetectedGPT None.