AI Humanizer Benchmark

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Head to head · September 2026 cycle

AI Humanize vs WriteHuman

WriteHuman finished 5.5 points ahead of AI Humanize in the September 2026 cycle, 81.60 to 76.10, ranking #3 against #5 in a field of 11. WriteHuman scored higher on 6 of 7 detectors and 6 of 7 writing categories. AI Humanize came out ahead on Readability (74.7 vs 72.4), Penalties (None vs −1.0), Copyleaks (66.7 vs 63.6). The bypass-rate gap, 82.6 to 90.4, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.

76.10/100
Overall score
#5/11
Rank
+5.5
WriteHuman leads
Detectors
16
Categories
16
Components
23
WriteHumanLeads
writehuman.ai
81.60/100
Overall score
#3/11
Rank
Last tested
2026-09-03
Prompts
33
Methodology
v1.0.0

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

AI HumanizeWriteHuman
Bypass rateCIs overlapWriteHuman by 7.8
82.6
90.4
Meaning preservationWriteHuman by 5.4
70.8
76.2
ReadabilityAI Humanize by 2.3
74.7
72.4
ConsistencyWriteHuman by 18.5
67.9
86.4
Penaltiesfewer is betterAI Humanize by 1.0
None
−1.0

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

Detector by detector

Share of each tool's outputs that a detector classified as human-written. WriteHuman took 6 of 7.

AI HumanizeWriteHuman
GPTZeroWriteHuman by 1.1
55.4
56.5
Winston AIWriteHuman by 1.1
81.0
82.1
Originality.aiWriteHuman by 36.0
23.2
59.2
ZeroGPTWriteHuman by 4.8
87.1
92.0
GrammarlyWriteHuman by 5.8
88.4
94.2
QuillBotWriteHuman by 3.0
89.3
92.2
CopyleaksAI Humanize by 3.0
66.7
63.6

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.

Academic essayApplication essayBlog postBusiness emailMarketing copyDiscussion boardNews article
AI HumanizeWriteHumanOuter ring = 100
AI HumanizeWriteHuman
Academic essay6 promptsWriteHuman by 3.1
83.1
86.2
Application essay6 promptsWriteHuman by 10.2
74.7
84.9
Blog post6 promptsWriteHuman by 0.9
79.7
80.6
Business email3 promptsWriteHuman by 28.0
41.5
69.5
Marketing copy6 promptsWriteHuman by 3.5
82.7
86.2
Discussion board3 promptsWriteHuman by 10.1
73.0
83.1
News article3 promptsAI Humanize by 2.6
82.2
79.6

Where each one wins

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

AI Humanize

4 wins
  • Readability Score74.7 vs 72.4
  • Penalties ScoreNone vs −1.0
  • Copyleaks Detector66.7 vs 63.6
  • News article Category82.2 vs 79.6

WriteHuman

15 wins
  • Consistency Score86.4 vs 67.9
  • Bypass rate Score90.4 vs 82.6
  • Meaning preservation Score76.2 vs 70.8
  • Originality.ai Detector59.2 vs 23.2
  • Grammarly Detector94.2 vs 88.4
  • ZeroGPT Detector92.0 vs 87.1
  • QuillBot Detector92.2 vs 89.3
  • GPTZero Detector56.5 vs 55.4
  • Winston AI Detector82.1 vs 81.0
  • Business email Category69.5 vs 41.5
  • Application essay Category84.9 vs 74.7
  • Discussion board Category83.1 vs 73.0
  • Marketing copy Category86.2 vs 82.7
  • Academic essay Category86.2 vs 83.1
  • Blog post Category80.6 vs 79.7

Questions people ask

Is AI Humanize better than WriteHuman?

WriteHuman finished 5.5 points ahead of AI Humanize in the September 2026 cycle, 81.60 to 76.10, ranking #3 against #5 in a field of 11. WriteHuman scored higher on 6 of 7 detectors and 6 of 7 writing categories. Both tools ran the same 33 prompts, scored by the same 7 detectors, under methodology v1.0.0; every input, output, and verdict is published.

Which bypasses AI detectors better, AI Humanize or WriteHuman?

WriteHuman posted the higher bypass rate, 90.4 vs 82.6, and scored higher on 6 of 7 detectors. AI Humanize led on Copyleaks; WriteHuman led on GPTZero, Winston AI, Originality.ai, ZeroGPT, Grammarly and QuillBot. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.

Do AI Humanize and WriteHuman keep the original meaning?

WriteHuman preserved meaning better, 76.2 vs 70.8 on our 0–100 similarity scale. On readability, AI Humanize rated higher, 74.7 vs 72.4. Penalties this cycle: AI Humanize None, WriteHuman −1.0.

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