AI Humanizer Benchmark

Leaderboard / Compare / CleverHumanizer vs GPTinf

Head to head · September 2026 cycle

CleverHumanizer vs GPTinf

GPTinf finished 11.5 points ahead of CleverHumanizer in the September 2026 cycle, 78.30 to 66.80, ranking #4 against #9 in a field of 11. GPTinf scored higher on 2 of 7 detectors and 4 of 7 writing categories. CleverHumanizer came out ahead on Bypass rate (86.5 vs 79.9), Consistency (88.8 vs 82.2), Originality.ai (67.0 vs 33.8). The bypass-rate gap, 86.5 to 79.9, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.

CleverHumanizer
cleverhumanizer.ai
66.80/100
Overall score
#9/11
Rank
+11.5
GPTinf leads
Detectors
52
Categories
34
Components
23
GPTinfLeads
gptinf.com
78.30/100
Overall score
#4/11
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

CleverHumanizerGPTinf
Bypass rateCIs overlapCleverHumanizer by 6.6
86.5
79.9
Meaning preservationGPTinf by 10.4
65.3
75.7
ReadabilityGPTinf by 3.5
73.2
76.7
ConsistencyCleverHumanizer by 6.6
88.8
82.2
Penaltiesfewer is betterGPTinf by 11.0
−11.0
None

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. CleverHumanizer took 5 of 7.

CleverHumanizerGPTinf
GPTZeroCleverHumanizer by 20.2
90.0
69.8
Winston AICleverHumanizer by 7.5
70.5
63.0
Originality.aiCleverHumanizer by 33.2
67.0
33.8
ZeroGPTGPTinf by 7.3
77.9
85.2
GrammarlyCleverHumanizer by 9.3
96.9
87.6
QuillBotCleverHumanizer by 3.9
88.8
84.9
CopyleaksGPTinf by 4.4
53.2
57.6

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
CleverHumanizerGPTinfOuter ring = 100
CleverHumanizerGPTinf
Academic essay6 promptsGPTinf by 3.9
81.4
85.3
Application essay6 promptsGPTinf by 7.8
71.7
79.5
Blog post6 promptsCleverHumanizer by 6.5
81.5
75.0
Business email3 promptsCleverHumanizer by 6.5
68.3
61.8
Marketing copy6 promptsGPTinf by 2.6
79.1
81.7
Discussion board3 promptsGPTinf by 5.3
77.6
82.9
News article3 promptsCleverHumanizer by 9.7
82.9
73.2

Where each one wins

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

CleverHumanizer

10 wins
  • Bypass rate Score86.5 vs 79.9
  • Consistency Score88.8 vs 82.2
  • Originality.ai Detector67.0 vs 33.8
  • GPTZero Detector90.0 vs 69.8
  • Grammarly Detector96.9 vs 87.6
  • Winston AI Detector70.5 vs 63.0
  • QuillBot Detector88.8 vs 84.9
  • News article Category82.9 vs 73.2
  • Blog post Category81.5 vs 75.0
  • Business email Category68.3 vs 61.8

GPTinf

9 wins
  • Penalties ScoreNone vs −11.0
  • Meaning preservation Score75.7 vs 65.3
  • Readability Score76.7 vs 73.2
  • ZeroGPT Detector85.2 vs 77.9
  • Copyleaks Detector57.6 vs 53.2
  • Application essay Category79.5 vs 71.7
  • Discussion board Category82.9 vs 77.6
  • Academic essay Category85.3 vs 81.4
  • Marketing copy Category81.7 vs 79.1

Questions people ask

Is CleverHumanizer better than GPTinf?

GPTinf finished 11.5 points ahead of CleverHumanizer in the September 2026 cycle, 78.30 to 66.80, ranking #4 against #9 in a field of 11. GPTinf scored higher on 2 of 7 detectors and 4 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, CleverHumanizer or GPTinf?

CleverHumanizer posted the higher bypass rate, 86.5 vs 79.9, and scored higher on 5 of 7 detectors. CleverHumanizer led on GPTZero, Winston AI, Originality.ai, Grammarly and QuillBot; GPTinf led on ZeroGPT and Copyleaks. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.

Do CleverHumanizer and GPTinf keep the original meaning?

GPTinf preserved meaning better, 75.7 vs 65.3 on our 0–100 similarity scale. On readability, GPTinf rated higher, 76.7 vs 73.2. Penalties this cycle: CleverHumanizer −11.0, GPTinf None.

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