AI Humanizer BenchmarkLeaderboard / Compare / GPTinf vs Rephrasy
Head to head · November 2026 cycle
GPTinf vs Rephrasy
On the November 2026 leaderboard, Rephrasy leads GPTinf 72.97 to 72.05, a gap of 0.92 points. Rephrasy ranks #3 and GPTinf ranks #4 out of 10 tools. Rephrasy scores higher on 4 of 7 detectors and in 4 of 7 writing categories. GPTinf is ahead on readability (78.4 vs 75.3), penalties (none vs −3.0) and meaning preservation (71.5 vs 69.6). On bypass rate, GPTinf scores 69.8% and Rephrasy scores 80.0%, but their 95% confidence intervals overlap, so that difference is not statistically clear.
- Detectors
- 3 – 4
- Categories
- 3 – 4
- Components
- 3 – 2
- 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
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. Rephrasy scores higher on 4 of 7 detectors.
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.
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.
GPTinf
9 wins- Readability Score78.4 vs 75.3
- Penalties ScoreNone vs −3.0
- Meaning preservation Score71.5 vs 69.6
- ZeroGPT Detector81.0 vs 75.5
- QuillBot Detector85.5 vs 83.9
- Grammarly Detector87.5 vs 86.5
- Academic essay Category83.4 vs 78.4
- News article Category82.5 vs 78.7
- Application essay Category63.6 vs 61.4
Rephrasy
10 wins- Bypass rate Score80.0 vs 69.8
- Consistency Score80.7 vs 73.0
- GPTZero Detector82.6 vs 54.1
- Originality.ai Detector28.1 vs 6.2
- Copyleaks Detector87.9 vs 66.7
- Pangram Detector17.2 vs 0.0
- Business email Category70.2 vs 54.6
- Blog post Category79.0 vs 66.2
- Marketing copy Category82.3 vs 73.2
- Discussion board Category84.7 vs 82.7
Questions people ask
Is GPTinf better than Rephrasy?
On the November 2026 leaderboard, Rephrasy has an overall score of 72.97 and GPTinf has 72.05, a gap of 0.92 points. Rephrasy ranks #3 and GPTinf ranks #4 out of 10 tools. Rephrasy scores higher on 4 of 7 detectors and in 4 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, GPTinf or Rephrasy?
Rephrasy has the higher bypass rate, 80.0% vs 69.8% for GPTinf. Rephrasy scores higher on GPTZero, Originality.ai, Copyleaks and Pangram. GPTinf scores higher on ZeroGPT, QuillBot and Grammarly. The two tools' 95% confidence intervals for bypass rate overlap, so the difference is not statistically clear.
Do GPTinf and Rephrasy keep the original meaning?
Meaning preservation measures how close each output stays to its input, using embedding similarity on a 0–100 scale. GPTinf scores 71.5 and Rephrasy scores 69.6. On readability, GPTinf scores higher, 78.4 vs 75.3. This cycle, GPTinf had no penalties and Rephrasy lost 3.0 points to penalties.