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The September 2026 results are in: WriteHuman holds #1, and newcomer SupWriter debuts at #5.Read the full analysis →
HumanizerBench

Head to head · September 2026 cycle

AI Humanize io vs Super Humanizer

AI Humanize io finished 12.0 points ahead of Super Humanizer in the September 2026 cycle, 72.94 to 60.97, ranking #4 against #11 in a field of 14. AI Humanize io scored higher on 3 of 5 detectors and 5 of 7 writing categories. Super Humanizer came out ahead on business email prompts (53.7 vs 46.2), Copyleaks (63.7 vs 60.6) and news article prompts (73.9 vs 71.8). The bypass-rate gap, 81.5 to 64.4, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.

72.94 /100
overall score
#4 /14
rank ▲ 2
+11.97
← AI Humanize io leads
Detectors
3 2
Categories
5 2
Components
4 1
60.97 /100
overall score
#11 /14
rank ▼ 1
Last tested
Prompts
33
Methodology
v1.2.0

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 →

Bypass rate CIs overlap AI Humanize io by 17.2
81.5 64.4
Meaning preservation CIs overlap Super Humanizer by 1.0
73.2 74.2
Readability AI Humanize io by 6.3
58.4 52.1
Consistency AI Humanize io by 0.6
69.2 68.5
Penalties fewer is better AI Humanize io by 4.0
−1.0 −5.0

CIs overlap marks a gap that sits inside both tools' published 95% confidence intervals for that component; it may not survive another cycle.

Detector by detector

Share of each tool's outputs that a detector classified as human-written. AI Humanize io took 3 of 5.

GPTZero AI Humanize io by 1.1
55.8 54.6
Originality.ai AI Humanize io by 22.3
93.3 71.0
Copyleaks Super Humanizer by 3.1
60.6 63.7
Winston AI AI Humanize io by 26.8
79.0 52.2
ZeroGPT Super Humanizer by 1.9
75.0 76.9

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 →

Academic Essay Application Essay Blog Post Business Email Marketing Copy Discussion Board News Article Academic Essay: AI Humanize io 80.3 · Super Humanizer 55.2 Application Essay: AI Humanize io 68.0 · Super Humanizer 62.5 Blog Post: AI Humanize io 80.9 · Super Humanizer 58.8 Business Email: AI Humanize io 46.2 · Super Humanizer 53.7 Marketing Copy: AI Humanize io 82.4 · Super Humanizer 51.2 Discussion Board: AI Humanize io 62.5 · Super Humanizer 61.9 News Article: AI Humanize io 71.8 · Super Humanizer 73.9
AI Humanize io Super Humanizer Outer ring = 100
Academic Essay 6 prompts AI Humanize io by 25.1
80.3 55.2
Application Essay 6 prompts AI Humanize io by 5.5
68.0 62.5
Blog Post 6 prompts AI Humanize io by 22.1
80.9 58.8
Business Email 3 prompts Super Humanizer by 7.5
46.2 53.7
Marketing Copy 6 prompts AI Humanize io by 31.1
82.4 51.2
Discussion Board 3 prompts AI Humanize io by 0.7
62.5 61.9
News Article 3 prompts Super Humanizer by 2.1
71.8 73.9

Head-to-head history

Overall score in every cycle both tools were tested. AI Humanize io has finished ahead in 4 of 4 shared cycles.

50 60 70 80 June 2026 July 2026 August 2026 September 2026 June 2026: Super Humanizer 64.75 (#11) June 2026: AI Humanize io 72.95 (#6) July 2026: Super Humanizer 54.13 (#11) July 2026: AI Humanize io 59.66 (#10) August 2026: Super Humanizer 55.86 (#10) August 2026: AI Humanize io 64.57 (#6) September 2026: Super Humanizer 60.97 (#11) September 2026: AI Humanize io 72.94 (#4) 72.9 61.0
AI Humanize io Super Humanizer
Cycle AI Humanize io Super Humanizer Margin
September 2026 72.94 #4 60.97 #11 ← 12.0
August 2026 64.57 #6 55.86 #10 ← 8.7
July 2026 59.66 #10 54.13 #11 ← 5.5
June 2026 72.95 #6 64.75 #11 ← 8.2

Where each one wins

Every measure above that one tool won outright, largest margin first within each group.

AI Humanize io

12 wins
  • Penalties Score −1.0 vs −5.0
  • Bypass rate Score 81.5 vs 64.4
  • Readability Score 58.4 vs 52.1
  • Consistency Score 69.2 vs 68.5
  • Winston AI Detector 79.0 vs 52.2
  • Originality.ai Detector 93.3 vs 71.0
  • GPTZero Detector 55.8 vs 54.6
  • Marketing Copy Category 82.4 vs 51.2
  • Academic Essay Category 80.3 vs 55.2
  • Blog Post Category 80.9 vs 58.8
  • and 2 more

Super Humanizer

5 wins
  • Meaning preservation Score 74.2 vs 73.2
  • Copyleaks Detector 63.7 vs 60.6
  • ZeroGPT Detector 76.9 vs 75.0
  • Business Email Category 53.7 vs 46.2
  • News Article Category 73.9 vs 71.8

Questions people ask

Is AI Humanize io better than Super Humanizer?

AI Humanize io finished 12.0 points ahead of Super Humanizer in the September 2026 cycle, 72.94 to 60.97, ranking #4 against #11 in a field of 14. AI Humanize io scored higher on 3 of 5 detectors and 5 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 Super Humanizer?

AI Humanize io posted the higher bypass rate, 81.5 vs 64.4, and scored higher on 3 of 5 detectors. AI Humanize io led on GPTZero, Originality.ai and Winston AI; Super Humanizer led on Copyleaks and ZeroGPT. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.

Do AI Humanize io and Super Humanizer keep the original meaning?

Super Humanizer preserved meaning better, 74.2 vs 73.2 on our 0–100 similarity scale, though the confidence intervals overlap. On readability, AI Humanize io rated higher, 58.4 vs 52.1. Penalties this cycle: AI Humanize io −1.0, Super Humanizer −5.0.