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The August 2026 results are in: WriteHuman holds #1, Undetectable AI falls to #8 on quality penalties.Read the full analysis →
HumanizerBench

Stealth Writer vs Walter Writes

Head-to-head from the August 2026 cycle benchmark

Last tested
Sample size
33
Methodology
v1.2.0
Winner
69.83
overall
â–² 1
Bypass
79.7
Meaning
72.0
Readability
43.7
60.83
overall
â–¼ 2
Bypass
68.0
Meaning
68.5
Readability
65.3

Side-by-side metrics

Detector-level breakdown

Gold cell wins each row.

Detector Stealth Writer Walter Writes
GPTZero 30.8 69.5
Winston AI 88.2 58.8
ZeroGPT 88.6 72.0
Copyleaks 73.5 46.0
Originality.ai 43.7 56.6

Minimum monthly pricing

Stealth Writer
$20.00/mo
Free tier
Yes
Walter Writes
$12.00/mo
Free tier
Yes