AI Humanizer Benchmark

Leaderboard / Compare / AI Humanize vs CleverHumanizer

Head to head · October 2026 cycle

AI Humanize vs CleverHumanizer

On the October 2026 leaderboard, AI Humanize leads CleverHumanizer 78.33 to 68.06, a gap of 10.27 points. AI Humanize ranks #5 and CleverHumanizer ranks #8 out of 11 tools. AI Humanize scores higher on 5 of 7 detectors and in 5 of 7 writing categories. CleverHumanizer is ahead on readability (76.8 vs 72.1), GPTZero (78.3 vs 40.9) and Originality.ai (93.8 vs 85.5). On bypass rate, CleverHumanizer scores 85.9% and AI Humanize scores 89.5%, but their 95% confidence intervals overlap, so that difference is not statistically clear.

AI HumanizeLeads
aihumanize.io ↗
78.33/100
Overall score
#5/11
Rank
+10.27
AI Humanize leads
Detectors
5 – 2
Categories
5 – 2
Components
4 – 1
CleverHumanizer
cleverhumanizer.ai ↗
68.06/100
Overall score
#8/11
Rank
Last tested
Prompts
33
Methodology
v1.1.0

Score components

The overall score weights bypass rate at 42%, meaning preservation at 32%, readability at 16% and consistency across writing categories at 10%. Penalties for output-quality failures are then subtracted. Full scoring formula

AI HumanizeCleverHumanizer
Bypass rateoverlapping CIsAI Humanize by 3.7
89.5
85.9
Meaning preservationAI Humanize by 0.9
66.4
65.5
ReadabilityCleverHumanizer by 4.7
72.1
76.8
ConsistencyAI Humanize by 12.0
89.3
77.3
Penaltieslower is betterAI Humanize by 8.0
−1.0
−9.0

Overlapping CIs means the two tools' 95% confidence intervals for bypass rate overlap, so the bypass difference is not statistically clear.

Detector by detector

Each figure is one detector's average human-likelihood score across all of a tool's outputs, on a 0–100 scale. Higher means more human. AI Humanize scores higher on 5 of 7 detectors.

AI HumanizeCleverHumanizer
GPTZeroCleverHumanizer by 37.4
40.9
78.3
Winston AIAI Humanize by 1.4
86.5
85.2
Originality.aiCleverHumanizer by 8.4
85.5
93.8
ZeroGPTAI Humanize by 7.6
85.7
78.1
GrammarlyAI Humanize by 2.9
91.1
88.2
QuillBotAI Humanize by 11.1
88.0
76.9
CopyleaksAI Humanize by 3.0
72.7
69.7

Writing categories

Each category score applies the overall-score weights to that category's prompts only. Bypass, meaning preservation and readability are averaged within the category, and the tool's overall consistency score is added. Penalties are not subtracted. Categories with few prompts give less reliable scores, so each row shows its prompt count.

Academic essayApplication essayBlog postBusiness emailMarketing copyDiscussion boardNews article
AI HumanizeCleverHumanizerScale: 0–100
AI HumanizeCleverHumanizer
Academic essay6 promptsAI Humanize by 4.5
84.2
79.7
Application essay6 promptsAI Humanize by 3.3
73.5
70.2
Blog post6 promptsCleverHumanizer by 6.6
78.5
85.1
Business email3 promptsAI Humanize by 14.9
77.2
62.3
Marketing copy6 promptsAI Humanize by 2.1
79.2
77.1
Discussion board3 promptsAI Humanize by 3.8
83.1
79.3
News article3 promptsCleverHumanizer by 0.2
81.6
81.8

Where each one wins

Measures where one tool is ahead of the other. Ties are left out. Score components come first, then detectors, then categories, with the largest gap first in each group.

AI Humanize

14 wins
  • Consistency Score89.3 vs 77.3
  • Penalties Score−1.0 vs −9.0
  • Bypass rate Score89.5 vs 85.9
  • Meaning preservation Score66.4 vs 65.5
  • QuillBot Detector88.0 vs 76.9
  • ZeroGPT Detector85.7 vs 78.1
  • Copyleaks Detector72.7 vs 69.7
  • Grammarly Detector91.1 vs 88.2
  • Winston AI Detector86.5 vs 85.2
  • Business email Category77.2 vs 62.3
  • Academic essay Category84.2 vs 79.7
  • Discussion board Category83.1 vs 79.3
  • Application essay Category73.5 vs 70.2
  • Marketing copy Category79.2 vs 77.1

CleverHumanizer

5 wins
  • Readability Score76.8 vs 72.1
  • GPTZero Detector78.3 vs 40.9
  • Originality.ai Detector93.8 vs 85.5
  • Blog post Category85.1 vs 78.5
  • News article Category81.8 vs 81.6

Questions people ask

Is AI Humanize better than CleverHumanizer?

On the October 2026 leaderboard, AI Humanize has an overall score of 78.33 and CleverHumanizer has 68.06, a gap of 10.27 points. AI Humanize ranks #5 and CleverHumanizer ranks #8 out of 11 tools. AI Humanize scores higher on 5 of 7 detectors and in 5 of 7 writing categories. Both tools rewrote the same 33 prompts, the same 7 detectors checked every output, and scoring followed methodology v1.1.0. All inputs, outputs and detector verdicts are public.

Which bypasses AI detectors better, AI Humanize or CleverHumanizer?

AI Humanize has the higher bypass rate, 89.5% vs 85.9% for CleverHumanizer. AI Humanize scores higher on Winston AI, ZeroGPT, Grammarly, QuillBot and Copyleaks. CleverHumanizer scores higher on GPTZero and Originality.ai. The two tools' 95% confidence intervals for bypass rate overlap, so the difference is not statistically clear.

Do AI Humanize and CleverHumanizer keep the original meaning?

Meaning preservation measures how close each output stays to its input, using embedding similarity on a 0–100 scale. AI Humanize scores 66.4 and CleverHumanizer scores 65.5. On readability, CleverHumanizer scores higher, 76.8 vs 72.1. This cycle, AI Humanize lost 1.0 points to penalties and CleverHumanizer lost 9.0 points to penalties.

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