Head to head · September 2026 cycle
AI Humanize io vs Penlify
AI Humanize io finished 36.4 points ahead of Penlify in the September 2026 cycle, 72.94 to 36.57, ranking #4 against #14 in a field of 14. AI Humanize io scored higher on 5 of 5 detectors and 7 of 7 writing categories. Penlify came out ahead on consistency across categories (100.0 vs 69.2) and readability (71.8 vs 58.4).
- Detectors
- 5 – 0
- Categories
- 7 – 0
- Components
- 3 – 2
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. AI Humanize io 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.
AI Humanize io
15 wins- Bypass rate Score 81.5 vs 0.0
- Penalties Score −1.0 vs −5.0
- Meaning preservation Score 73.2 vs 62.7
- Originality.ai Detector 93.3 vs 0.0
- Winston AI Detector 79.0 vs 0.4
- Copyleaks Detector 60.6 vs 0.0
- GPTZero Detector 55.8 vs 0.0
- ZeroGPT Detector 75.0 vs 43.0
- Academic Essay Category 80.3 vs 27.0
- Blog Post Category 80.9 vs 37.3
- and 5 more
Penlify
2 wins- Consistency Score 100.0 vs 69.2
- Readability Score 71.8 vs 58.4
Questions people ask
Is AI Humanize io better than Penlify?
AI Humanize io finished 36.4 points ahead of Penlify in the September 2026 cycle, 72.94 to 36.57, ranking #4 against #14 in a field of 14. AI Humanize io 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, AI Humanize io or Penlify?
AI Humanize io posted the higher bypass rate, 81.5 vs 0.0, and scored higher on 5 of 5 detectors. AI Humanize io led on GPTZero, Originality.ai, Copyleaks, Winston AI and ZeroGPT.
Do AI Humanize io and Penlify keep the original meaning?
AI Humanize io preserved meaning better, 73.2 vs 62.7 on our 0–100 similarity scale. On readability, Penlify rated higher, 71.8 vs 58.4. Penalties this cycle: AI Humanize io −1.0, Penlify −5.0.