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The July 2026 results are in: WriteHuman takes #1, Undetectable AI moves up to #2.Read the full analysis →
HumanizerBench

Phrasly vs StealthGPT

Head-to-head from the July 2026 cycle benchmark

Last tested
Sample size
33
Methodology
v1.2.0
Winner
61.52
overall
â–¼ 1
Bypass
81.6
Meaning
63.0
Readability
60.6
61.47
overall
â–¼ 1
Bypass
73.4
Meaning
60.9
Readability
72.1

Side-by-side metrics

Detector-level breakdown

Gold cell wins each row.

Detector Phrasly StealthGPT
GPTZero 76.8 80.5
Winston AI 63.1 78.0
ZeroGPT 67.8 80.1
Copyleaks 80.0 82.8
Originality.ai 61.8 78.4

Minimum monthly pricing

Phrasly
$24.99/mo
Free tier
Yes
StealthGPT
$25.50/mo
Free tier
No