AI Humanizer Benchmark

Leaderboard / Compare / ReHumanize vs StealthGPT

Head to head · October 2026 cycle

ReHumanize vs StealthGPT

On the October 2026 leaderboard, StealthGPT leads ReHumanize 64.52 to 41.60, a gap of 22.92 points. StealthGPT ranks #9 and ReHumanize ranks #10 out of 11 tools. StealthGPT scores higher on all 7 detectors and in all 7 writing categories. ReHumanize is ahead on consistency (96.9 vs 75.9), readability (82.7 vs 80.6) and meaning preservation (68.7 vs 67.7).

41.60/100
Overall score
#10/11
Rank
+22.92
StealthGPT leads
Detectors
0 – 7
Categories
0 – 7
Components
3 – 1
StealthGPTLeads
stealthgpt.ai ↗
64.52/100
Overall score
#9/11
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

ReHumanizeStealthGPT
Bypass rateStealthGPT by 61.1
1.7
62.8
Meaning preservationReHumanize by 1.0
68.7
67.7
ReadabilityReHumanize by 2.1
82.7
80.6
ConsistencyReHumanize by 21.0
96.9
75.9
Penaltieslower is bettertied
−4.0
−4.0

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. StealthGPT scores higher on all 7 detectors.

ReHumanizeStealthGPT
GPTZeroStealthGPT by 41.5
0.0
41.5
Winston AIStealthGPT by 55.2
0.0
55.3
Originality.aiStealthGPT by 62.7
0.0
62.7
ZeroGPTStealthGPT by 19.3
48.1
67.4
GrammarlyStealthGPT by 18.8
50.2
69.0
QuillBotStealthGPT by 35.2
26.1
61.3
CopyleaksStealthGPT by 55.9
4.7
60.6

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
ReHumanizeStealthGPTScale: 0–100
ReHumanizeStealthGPT
Academic essay6 promptsStealthGPT by 36.2
42.1
78.3
Application essay6 promptsStealthGPT by 5.1
46.1
51.2
Blog post6 promptsStealthGPT by 21.5
48.6
70.1
Business email3 promptsStealthGPT by 11.6
47.9
59.5
Marketing copy6 promptsStealthGPT by 34.2
43.1
77.3
Discussion board3 promptsStealthGPT by 23.3
46.3
69.6
News article3 promptsStealthGPT by 23.3
47.5
70.8

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.

ReHumanize

3 wins
  • Consistency Score96.9 vs 75.9
  • Readability Score82.7 vs 80.6
  • Meaning preservation Score68.7 vs 67.7

StealthGPT

15 wins
  • Bypass rate Score62.8 vs 1.7
  • Originality.ai Detector62.7 vs 0.0
  • Copyleaks Detector60.6 vs 4.7
  • Winston AI Detector55.3 vs 0.0
  • GPTZero Detector41.5 vs 0.0
  • QuillBot Detector61.3 vs 26.1
  • ZeroGPT Detector67.4 vs 48.1
  • Grammarly Detector69.0 vs 50.2
  • Academic essay Category78.3 vs 42.1
  • Marketing copy Category77.3 vs 43.1
  • Discussion board Category69.6 vs 46.3
  • News article Category70.8 vs 47.5
  • Blog post Category70.1 vs 48.6
  • Business email Category59.5 vs 47.9
  • Application essay Category51.2 vs 46.1

Questions people ask

Is ReHumanize better than StealthGPT?

On the October 2026 leaderboard, StealthGPT has an overall score of 64.52 and ReHumanize has 41.60, a gap of 22.92 points. StealthGPT ranks #9 and ReHumanize ranks #10 out of 11 tools. StealthGPT scores higher on all 7 detectors and in all 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, ReHumanize or StealthGPT?

StealthGPT has the higher bypass rate, 62.8% vs 1.7% for ReHumanize. It scores higher on all 7 detectors. The two tools' 95% confidence intervals for bypass rate do not overlap.

Do ReHumanize and StealthGPT keep the original meaning?

Meaning preservation measures how close each output stays to its input, using embedding similarity on a 0–100 scale. ReHumanize scores 68.7 and StealthGPT scores 67.7. On readability, ReHumanize scores higher, 82.7 vs 80.6. This cycle, ReHumanize lost 4.0 points to penalties and StealthGPT lost 4.0 points to penalties.

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