AI Humanizer BenchmarkLeaderboard / Compare / SmartHumanizer vs WriteHuman
Head to head · September 2026 cycle
SmartHumanizer vs WriteHuman
SmartHumanizer finished 3.2 points ahead of WriteHuman in the September 2026 cycle, 84.80 to 81.60, ranking #2 against #3 in a field of 11. SmartHumanizer scored higher on 3 of 7 detectors and 5 of 7 writing categories. WriteHuman came out ahead on Bypass rate (90.4 vs 85.3), Copyleaks (63.6 vs 15.2), Winston AI (82.1 vs 51.0). The bypass-rate gap, 90.4 to 85.3, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.
- Detectors
- 3 – 4
- Categories
- 5 – 2
- Components
- 4 – 1
- 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
CIs overlap marks a gap that sits inside both tools' 95% confidence intervals for bypass rate; it may not survive another cycle.
Detector by detector
Share of each tool's outputs that a detector classified as human-written. WriteHuman took 4 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.
SmartHumanizer
12 wins- Meaning preservation Score87.6 vs 76.2
- Readability Score75.7 vs 72.4
- Consistency Score88.3 vs 86.4
- Penalties ScoreNone vs −1.0
- Originality.ai Detector78.2 vs 59.2
- GPTZero Detector71.0 vs 56.5
- QuillBot Detector94.2 vs 92.2
- Business email Category75.6 vs 69.5
- Discussion board Category88.3 vs 83.1
- Academic essay Category89.8 vs 86.2
- Marketing copy Category89.2 vs 86.2
- Blog post Category82.4 vs 80.6
WriteHuman
7 wins- Bypass rate Score90.4 vs 85.3
- Copyleaks Detector63.6 vs 15.2
- Winston AI Detector82.1 vs 51.0
- ZeroGPT Detector92.0 vs 82.6
- Grammarly Detector94.2 vs 86.9
- Application essay Category84.9 vs 83.3
- News article Category79.6 vs 79.3
Questions people ask
Is SmartHumanizer better than WriteHuman?
SmartHumanizer finished 3.2 points ahead of WriteHuman in the September 2026 cycle, 84.80 to 81.60, ranking #2 against #3 in a field of 11. SmartHumanizer scored higher on 3 of 7 detectors and 5 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, SmartHumanizer or WriteHuman?
WriteHuman posted the higher bypass rate, 90.4 vs 85.3, and scored higher on 4 of 7 detectors. SmartHumanizer led on GPTZero, Originality.ai and QuillBot; WriteHuman led on Winston AI, ZeroGPT, Grammarly and Copyleaks. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.
Do SmartHumanizer and WriteHuman keep the original meaning?
SmartHumanizer preserved meaning better, 87.6 vs 76.2 on our 0–100 similarity scale. On readability, SmartHumanizer rated higher, 75.7 vs 72.4. Penalties this cycle: SmartHumanizer None, WriteHuman −1.0.