AI Humanizer BenchmarkLeaderboard / Compare / HIX Bypass vs Undetectable AI
Head to head · October 2026 cycle
HIX Bypass vs Undetectable AI
On the October 2026 leaderboard, HIX Bypass leads Undetectable AI 83.87 to 33.60, a gap of 50.27 points. HIX Bypass ranks #2 and Undetectable AI ranks #11 out of 11 tools. HIX Bypass scores higher on 6 of 7 detectors and in all 7 writing categories. Undetectable AI is ahead on readability (73.2 vs 64.3), consistency (97.8 vs 93.9) and GPTZero (12.0 vs 4.0).
- Detectors
- 6 – 1
- Categories
- 7 – 0
- Components
- 3 – 2
- 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
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. HIX Bypass scores higher on 6 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.
HIX Bypass
16 wins- Bypass rate Score93.5 vs 1.8
- Penalties ScoreNone vs −12.0
- Meaning preservation Score77.9 vs 72.9
- Originality.ai Detector89.1 vs 3.8
- Winston AI Detector86.6 vs 3.0
- Copyleaks Detector81.8 vs 1.5
- QuillBot Detector93.4 vs 14.5
- Grammarly Detector88.9 vs 20.6
- ZeroGPT Detector94.7 vs 34.5
- Discussion board Category89.0 vs 39.0
- Academic essay Category86.4 vs 39.6
- Marketing copy Category84.1 vs 43.9
- Application essay Category80.2 vs 44.5
- News article Category86.4 vs 51.7
- Business email Category79.8 vs 49.0
- Blog post Category83.0 vs 53.0
Undetectable AI
3 wins- Readability Score73.2 vs 64.3
- Consistency Score97.8 vs 93.9
- GPTZero Detector12.0 vs 4.0
Questions people ask
Is HIX Bypass better than Undetectable AI?
On the October 2026 leaderboard, HIX Bypass has an overall score of 83.87 and Undetectable AI has 33.60, a gap of 50.27 points. HIX Bypass ranks #2 and Undetectable AI ranks #11 out of 11 tools. HIX Bypass scores higher on 6 of 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, HIX Bypass or Undetectable AI?
HIX Bypass has the higher bypass rate, 93.5% vs 1.8% for Undetectable AI. HIX Bypass scores higher on Winston AI, Originality.ai, ZeroGPT, Grammarly, QuillBot and Copyleaks. Undetectable AI scores higher on GPTZero. The two tools' 95% confidence intervals for bypass rate do not overlap.
Do HIX Bypass and Undetectable AI keep the original meaning?
Meaning preservation measures how close each output stays to its input, using embedding similarity on a 0–100 scale. HIX Bypass scores 77.9 and Undetectable AI scores 72.9. On readability, Undetectable AI scores higher, 73.2 vs 64.3. This cycle, HIX Bypass had no penalties and Undetectable AI lost 12.0 points to penalties.