Head to head · September 2026 cycle
Penlify vs WriteHuman
WriteHuman finished 41.7 points ahead of Penlify in the September 2026 cycle, 78.29 to 36.57, ranking #1 against #14 in a field of 14. WriteHuman scored higher on 5 of 5 detectors and 7 of 7 writing categories. Penlify came out ahead on consistency across categories (100.0 vs 82.1) and readability (71.8 vs 56.9).
- Detectors
- 0 – 5
- Categories
- 0 – 7
- Components
- 2 – 3
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. WriteHuman took 5 of 5.
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. How category scores work →
Where each one wins
Every measure above that one tool won outright, largest margin first within each group.
Penlify
2 wins- Consistency Score 100.0 vs 82.1
- Readability Score 71.8 vs 56.9
WriteHuman
15 wins- Bypass rate Score 90.1 vs 0.0
- Penalties Score None vs −5.0
- Meaning preservation Score 72.3 vs 62.7
- Originality.ai Detector 91.4 vs 0.0
- Copyleaks Detector 86.7 vs 0.0
- Winston AI Detector 84.1 vs 0.4
- GPTZero Detector 71.8 vs 0.0
- ZeroGPT Detector 77.8 vs 43.0
- Academic Essay Category 84.1 vs 27.0
- Blog Post Category 83.9 vs 37.3
- and 5 more
Questions people ask
Is Penlify better than WriteHuman?
WriteHuman finished 41.7 points ahead of Penlify in the September 2026 cycle, 78.29 to 36.57, ranking #1 against #14 in a field of 14. WriteHuman scored higher on 5 of 5 detectors and 7 of 7 writing categories. Both tools ran the same 33 prompts, scored by the same 5 detectors, under methodology v1.2.0; every input, output and verdict is published.
Which bypasses AI detectors better, Penlify or WriteHuman?
WriteHuman posted the higher bypass rate, 90.1 vs 0.0, and scored higher on 5 of 5 detectors. WriteHuman led on GPTZero, Originality.ai, Copyleaks, Winston AI and ZeroGPT.
Do Penlify and WriteHuman keep the original meaning?
WriteHuman preserved meaning better, 72.3 vs 62.7 on our 0–100 similarity scale. On readability, Penlify rated higher, 71.8 vs 56.9. Penalties this cycle: Penlify −5.0, WriteHuman None.