October 2026 Benchmark Results
UndetectedGPT
Fifth overall in October at 68.7; its 84.1 detector-bypass score is stronger than its 71.9 meaning and 68.4 readability results.
Scorecard
By detector
How UndetectedGPT performs against each detector we test.
| Detector | Score | Pass rate |
|---|---|---|
| Pangram | 79.8 | 80% |
| GPTZero | 86.1 | 86% |
| Originality.ai | 85.7 | 86% |
| Copyleaks | 83.9 | 84% |
| ZeroGPT | 85.2 | 85% |
At a glance
UndetectedGPT sits 0.7 points behind Stealth Writer and 2.8 points ahead of HIX Bypass in the October overall ranking. Its strongest published component is detector bypass at 84.1.
Detector results
UndetectedGPT places fourth on all five detector-specific rankings. It scores 79.8 against Pangram, 86.1 against GPTZero, 85.7 against Originality.ai, 83.9 against Copyleaks and 85.2 against ZeroGPT.
The trade-off
The October table reports 71.9 for meaning preservation and 68.4 for readability. Both writing-quality scores sit below its detector-bypass result, so detector performance is the clearest strength in the published profile.
Bottom line
UndetectedGPT is the strongest detector-focused option in the middle of the October table. Its fourth-place detector results are consistent across the panel, but meaning and readability should be checked carefully for quality-sensitive writing.
October 2026 results
The benchmark case for UndetectedGPT
The current cycle places UndetectedGPT fifth overall, supported by fourth-place results across all five reported detectors.
Overall: 68.7
Ranked #5 of 10 tools, 2.8 points ahead of sixth place.
Detector bypass: 84.1
Ranked #4 among the 10 October tools for detector bypass.
Meaning: 71.9
Ranked #7 among the 10 October tools for meaning preservation.
Readability: 68.4
Ranked #5 among the 10 October tools for readability.
Related research
Explore Humanizer Arena research
See separate experiments and the site methodology for additional context.