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

AI Humanize io vs SupWriter

Head-to-head from the September 2026 cycle benchmark

Last tested
Prompts
33
Methodology
v1.2.0
Winner
72.94
overall
â–² 2
Bypass
81.5
Meaning
73.2
Readability
58.4
72.80
overall
-
Bypass
80.3
Meaning
79.0
Readability
45.7

Side-by-side metrics

Detector-level breakdown

Gold cell wins each row.

Detector AI Humanize io SupWriter
GPTZero 55.8 21.0
Winston AI 79.0 81.5
ZeroGPT 75.0 77.9
Copyleaks 60.6 85.3
Originality.ai 93.3 78.5

Minimum monthly pricing

AI Humanize io
$15.00/mo
Free tier
Yes
SupWriter
$9.99/mo
Free tier
Yes