Head-to-head · September 2026
GPTHuman vs StealthGPT
GPTHuman finished 7.10 points ahead in the September 2026 cycle, 88.28 to 81.14, ranking #1 against #2 in a field of 7. GPTHuman led 4 of 4 published detector results and 3 of 5 use cases. StealthGPT still came out ahead on SEO content and Marketing copy.
Result at a glance
GPTHuman wins overall
Both tools processed the same 150 source texts under methodology version 2.1.0.
September 2026 cycle · dataset humanizer-sept-2026-v1 · scores on a 100-point scale.
Core measurements
Score components
GPTHuman is listed first in every card. Overall scores include the benchmark's documented quality penalties.
Detector bypass: 92.6 vs 86.2
GPTHuman leads by 6.4 points.
Meaning preservation: 91.4 vs 78.9
GPTHuman leads by 12.5 points.
Readability: 89.7 vs 84.1
GPTHuman leads by 5.6 points.
Consistency: 90.3 vs 82.6
GPTHuman leads by 7.7 points.
Detector results
Detector by detector
These are the published September scores available for both tools. Each score uses the same underlying cycle and sample rules.
GPTZero: 94.1 vs 90.3
GPTHuman leads by 3.8 points.
Originality.ai: 89.8 vs 84.2
GPTHuman leads by 5.6 points.
Winston AI: 88.9 vs 85.1
GPTHuman leads by 3.8 points.
Turnitin: 93.5 vs 87
GPTHuman leads by 6.5 points. This is a benchmark proxy based on academic and essay subsets, not a direct Turnitin API result.
Use cases
Writing categories
Use-case scores reweight the benchmark measurements for the needs of each writing task.
Students: 94.2 vs 88.6
GPTHuman leads by 5.6 points.
Essays: 93.8 vs 85.4
GPTHuman leads by 8.4 points.
Academic writing: 92.9 vs 83.7
GPTHuman leads by 9.2 points.
SEO content: 89.4 vs 91.6
StealthGPT leads by 2.2 points.
Marketing copy: 88.7 vs 90.4
StealthGPT leads by 1.7 points.
How we test
Methodology
See the benchmark design, scoring rules and limitations behind these results.
GPTHuman vs StealthGPT FAQ
- Which is better overall, GPTHuman or StealthGPT?
- GPTHuman ranked higher in the September 2026 cycle, scoring 88.28 versus 81.14.
- Does GPTHuman win every use case?
- No. StealthGPT leads SEO content and Marketing copy in the published use-case scores, even though GPTHuman leads overall.
- Is the Turnitin score a direct Turnitin API result?
- No. It is a benchmark proxy based on academic and essay subsets under the strictest settings in the five-detector pool.
- Do these results guarantee detector bypass?
- No. They describe average measured performance in one fixed cycle. Detectors and humanizers change, and individual documents can produce different results.