AI Humanizer Benchmark

Leaderboard / Compare / GPTinf vs HIX Bypass

Head to head · September 2026 cycle

GPTinf vs HIX Bypass

GPTinf finished 4.5 points ahead of HIX Bypass in the September 2026 cycle, 78.30 to 73.80, ranking #4 against #6 in a field of 11. GPTinf scored higher on 3 of 7 detectors and 6 of 7 writing categories. HIX Bypass came out ahead on Meaning preservation (80.8 vs 75.7), Winston AI (69.1 vs 63.0), QuillBot (88.9 vs 84.9). The bypass-rate gap, 73.2 to 79.9, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.

GPTinfLeads
gptinf.com
78.30/100
Overall score
#4/11
Rank
+4.5
GPTinf leads
Detectors
34
Categories
61
Components
31
73.80/100
Overall score
#6/11
Rank
Last tested
2026-09-03
Prompts
33
Methodology
v1.0.0

Score components

What the overall score is made of: bypass rate weighs 42%, meaning preservation 32%, readability 16%, consistency across categories 10%. Output-quality penalties come off the total. How scoring works

GPTinfHIX Bypass
Bypass rateCIs overlapGPTinf by 6.7
79.9
73.2
Meaning preservationHIX Bypass by 5.1
75.7
80.8
ReadabilityGPTinf by 12.9
76.7
63.8
ConsistencyGPTinf by 12.3
82.2
69.9
Penaltiesfewer is bettertied
None
None

CIs overlap marks a gap that sits inside both tools' 95% confidence intervals for bypass rate; it may not survive another cycle.

Detector by detector

Share of each tool's outputs that a detector classified as human-written. HIX Bypass took 4 of 7.

GPTinfHIX Bypass
GPTZeroGPTinf by 54.1
69.8
15.7
Winston AIHIX Bypass by 6.1
63.0
69.1
Originality.aiGPTinf by 9.2
33.8
24.6
ZeroGPTHIX Bypass by 0.8
85.2
86.0
GrammarlyHIX Bypass by 0.4
87.6
88.0
QuillBotHIX Bypass by 4.0
84.9
88.9
CopyleaksGPTinf by 3.0
57.6
54.5

Writing categories

Category score per writing context: bypass credit only for real rewrites, blended with the category's own meaning preservation and readability. Small categories swing; the prompt count is shown on each row.

Academic essayApplication essayBlog postBusiness emailMarketing copyDiscussion boardNews article
GPTinfHIX BypassOuter ring = 100
GPTinfHIX Bypass
Academic essay6 promptsGPTinf by 1.9
85.3
83.4
Application essay6 promptsGPTinf by 8.5
79.5
71.0
Blog post6 promptsGPTinf by 1.7
75.0
73.3
Business email3 promptsGPTinf by 21.6
61.8
40.2
Marketing copy6 promptsGPTinf by 1.3
81.7
80.4
Discussion board3 promptsGPTinf by 13.4
82.9
69.5
News article3 promptsHIX Bypass by 12.5
73.2
85.7

Where each one wins

Every measure above that one tool won outright, largest margin first within each group.

GPTinf

12 wins
  • Readability Score76.7 vs 63.8
  • Consistency Score82.2 vs 69.9
  • Bypass rate Score79.9 vs 73.2
  • GPTZero Detector69.8 vs 15.7
  • Originality.ai Detector33.8 vs 24.6
  • Copyleaks Detector57.6 vs 54.5
  • Business email Category61.8 vs 40.2
  • Discussion board Category82.9 vs 69.5
  • Application essay Category79.5 vs 71.0
  • Academic essay Category85.3 vs 83.4
  • Blog post Category75.0 vs 73.3
  • Marketing copy Category81.7 vs 80.4

HIX Bypass

6 wins
  • Meaning preservation Score80.8 vs 75.7
  • Winston AI Detector69.1 vs 63.0
  • QuillBot Detector88.9 vs 84.9
  • ZeroGPT Detector86.0 vs 85.2
  • Grammarly Detector88.0 vs 87.6
  • News article Category85.7 vs 73.2

Questions people ask

Is GPTinf better than HIX Bypass?

GPTinf finished 4.5 points ahead of HIX Bypass in the September 2026 cycle, 78.30 to 73.80, ranking #4 against #6 in a field of 11. GPTinf scored higher on 3 of 7 detectors and 6 of 7 writing categories. Both tools ran the same 33 prompts, scored by the same 7 detectors, under methodology v1.0.0; every input, output, and verdict is published.

Which bypasses AI detectors better, GPTinf or HIX Bypass?

GPTinf posted the higher bypass rate, 79.9 vs 73.2, and scored higher on 3 of 7 detectors. GPTinf led on GPTZero, Originality.ai and Copyleaks; HIX Bypass led on Winston AI, ZeroGPT, Grammarly and QuillBot. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.

Do GPTinf and HIX Bypass keep the original meaning?

HIX Bypass preserved meaning better, 80.8 vs 75.7 on our 0–100 similarity scale. On readability, GPTinf rated higher, 76.7 vs 63.8. Penalties this cycle: GPTinf None, HIX Bypass None.

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