AI Humanizer Benchmark

Leaderboard / Compare / Rephrasy vs SuperHumanizer

Head to head · November 2026 cycle

Rephrasy vs SuperHumanizer

On the November 2026 leaderboard, Rephrasy leads SuperHumanizer 72.97 to 69.41, a gap of 3.56 points. Rephrasy ranks #3 and SuperHumanizer ranks #5 out of 10 tools. Rephrasy scores higher on 6 of 7 detectors and in 6 of 7 writing categories. SuperHumanizer is ahead on meaning preservation (78.9 vs 69.6), consistency (84.2 vs 80.7) and penalties (none vs −3.0).

RephrasyLeads
rephrasy.ai ↗
72.97/100
Overall score
#3/10
Rank
+3.56
Rephrasy leads
Detectors
6 – 1
Categories
6 – 1
Components
1 – 4
SuperHumanizer
superhumanizer.ai ↗
69.41/100
Overall score
#5/10
Rank
Last tested
Prompts
33
Methodology
v1.2.0

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

RephrasySuperHumanizer
Bypass rateRephrasy by 24.7
80.0
55.2
Meaning preservationSuperHumanizer by 9.3
69.6
78.9
ReadabilitySuperHumanizer by 3.0
75.3
78.3
ConsistencySuperHumanizer by 3.5
80.7
84.2
Penaltieslower is betterSuperHumanizer by 3.0
−3.0
None

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. Rephrasy scores higher on 6 of 7 detectors.

RephrasySuperHumanizer
GPTZeroRephrasy by 45.5
82.6
37.1
Originality.aiRephrasy by 17.4
28.1
10.7
CopyleaksRephrasy by 27.3
87.9
60.6
PangramRephrasy by 11.9
17.2
5.3
ZeroGPTRephrasy by 10.9
75.5
64.6
QuillBotSuperHumanizer by 3.6
83.9
87.6
GrammarlyRephrasy by 0.6
86.5
85.8

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
RephrasySuperHumanizerScale: 0–100
RephrasySuperHumanizer
Academic essay6 promptsRephrasy by 2.4
78.4
76.0
Application essay6 promptsSuperHumanizer by 14.1
61.4
75.5
Blog post6 promptsRephrasy by 8.6
79.0
70.4
Business email3 promptsRephrasy by 11.0
70.2
59.2
Marketing copy6 promptsRephrasy by 16.7
82.3
65.6
Discussion board3 promptsRephrasy by 16.3
84.7
68.4
News article3 promptsRephrasy by 17.8
78.7
60.9

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.

Rephrasy

13 wins
  • Bypass rate Score80.0 vs 55.2
  • GPTZero Detector82.6 vs 37.1
  • Copyleaks Detector87.9 vs 60.6
  • Originality.ai Detector28.1 vs 10.7
  • Pangram Detector17.2 vs 5.3
  • ZeroGPT Detector75.5 vs 64.6
  • Grammarly Detector86.5 vs 85.8
  • News article Category78.7 vs 60.9
  • Marketing copy Category82.3 vs 65.6
  • Discussion board Category84.7 vs 68.4
  • Business email Category70.2 vs 59.2
  • Blog post Category79.0 vs 70.4
  • Academic essay Category78.4 vs 76.0

SuperHumanizer

6 wins
  • Meaning preservation Score78.9 vs 69.6
  • Consistency Score84.2 vs 80.7
  • Penalties ScoreNone vs −3.0
  • Readability Score78.3 vs 75.3
  • QuillBot Detector87.6 vs 83.9
  • Application essay Category75.5 vs 61.4

Questions people ask

Is Rephrasy better than SuperHumanizer?

On the November 2026 leaderboard, Rephrasy has an overall score of 72.97 and SuperHumanizer has 69.41, a gap of 3.56 points. Rephrasy ranks #3 and SuperHumanizer ranks #5 out of 10 tools. Rephrasy scores higher on 6 of 7 detectors and in 6 of 7 writing categories. Both tools rewrote the same 33 prompts, the same 7 detectors checked every output, and scoring followed methodology v1.2.0. All inputs, outputs and detector verdicts are public.

Which bypasses AI detectors better, Rephrasy or SuperHumanizer?

Rephrasy has the higher bypass rate, 80.0% vs 55.2% for SuperHumanizer. Rephrasy scores higher on GPTZero, Originality.ai, Copyleaks, Pangram, ZeroGPT and Grammarly. SuperHumanizer scores higher on QuillBot. The two tools' 95% confidence intervals for bypass rate do not overlap.

Do Rephrasy and SuperHumanizer keep the original meaning?

Meaning preservation measures how close each output stays to its input, using embedding similarity on a 0–100 scale. SuperHumanizer scores 78.9 and Rephrasy scores 69.6. On readability, SuperHumanizer scores higher, 78.3 vs 75.3. This cycle, Rephrasy lost 3.0 points to penalties and SuperHumanizer had no penalties.

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