Humanizerbench

Monthly rankings of 12 AI humanizers across 5 detectors. Every input, output, and score published.

Monthly rankings of 12 AI humanizers across 5 detectors. Every input, output, and score published. HumanizerBench tests leading AI humanizers against GPTZero, ZeroGPT, Copyleaks, Winston AI, and Originality.ai. We publish every prompt, raw output, detector verdict, and scoring script so the rankings can be reproduced. We pay full price for every tool, use no affiliate links, and accept no payment for placement, removal, or higher scores. The benchmark is run transparently by WriteHuman, which is tested under the same methodology as every other tool. Weighted blend of bypass rate (42%), meaning preservation (32%), readability (16%), and consistency (10%). Penalties may reduce this score. Frac…

• 2 Humanize AI Pro 71.40
• 3 Stealth Writer 69.83
• Meaning drift −2.0 Applied 2× · max −10.0 The output's meaning drifted significantly from the original input.
• Meaning drift −4.0 Applied 4× · max −10.0 The output's meaning drifted significantly from the original input.
• Meaning drift −3.0 Applied 3× · max −10.0 The output's meaning drifted significantly from the original input.
• Meaning drift −3.0 Applied 3× · max −10.0 The output's meaning drifted significantly from the original input.
• Meaning drift −1.0 Applied 1× · max −10.0 The output's meaning drifted significantly from the original input.
• Meaning drift −1.0 Applied 1× · max −10.0 The output's meaning drifted significantly from the original input.

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