AI Humanizer Benchmark

Leaderboard / Compare / HIX Bypass vs Undetectable AI

Head to head · September 2026 cycle

HIX Bypass vs Undetectable AI

HIX Bypass finished 35.6 points ahead of Undetectable AI in the September 2026 cycle, 73.80 to 38.20, ranking #6 against #11 in a field of 11. HIX Bypass scored higher on 7 of 7 detectors and 6 of 7 writing categories. Undetectable AI came out ahead on Consistency (99.6 vs 69.9), Meaning preservation (89.6 vs 80.8), Readability (71.7 vs 63.8).

HIX BypassLeads
bypass.hix.ai
73.80/100
Overall score
#6/11
Rank
+35.6
HIX Bypass leads
Detectors
70
Categories
61
Components
23
Undetectable AI
undetectable.ai
38.20/100
Overall score
#11/11
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

HIX BypassUndetectable AI
Bypass rateHIX Bypass by 72.9
73.2
0.2
Meaning preservationUndetectable AI by 8.8
80.8
89.6
ReadabilityUndetectable AI by 7.9
63.8
71.7
ConsistencyUndetectable AI by 29.7
69.9
99.6
Penaltiesfewer is betterHIX Bypass by 12.0
None
−12.0

Detector by detector

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

HIX BypassUndetectable AI
GPTZeroHIX Bypass by 9.6
15.7
6.1
Winston AIHIX Bypass by 68.9
69.1
0.1
Originality.aiHIX Bypass by 24.6
24.6
0.0
ZeroGPTHIX Bypass by 59.5
86.0
26.5
GrammarlyHIX Bypass by 69.5
88.0
18.5
QuillBotHIX Bypass by 72.3
88.9
16.6
CopyleaksHIX Bypass by 54.5
54.5
0.0

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
HIX BypassUndetectable AIOuter ring = 100
HIX BypassUndetectable AI
Academic essay6 promptsHIX Bypass by 35.4
83.4
48.0
Application essay6 promptsHIX Bypass by 23.2
71.0
47.8
Blog post6 promptsHIX Bypass by 20.4
73.3
52.9
Business email3 promptsUndetectable AI by 10.7
40.2
50.9
Marketing copy6 promptsHIX Bypass by 29.5
80.4
50.9
Discussion board3 promptsHIX Bypass by 18.7
69.5
50.8
News article3 promptsHIX Bypass by 34.1
85.7
51.6

Where each one wins

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

HIX Bypass

15 wins
  • Bypass rate Score73.2 vs 0.2
  • Penalties ScoreNone vs −12.0
  • QuillBot Detector88.9 vs 16.6
  • Grammarly Detector88.0 vs 18.5
  • Winston AI Detector69.1 vs 0.1
  • ZeroGPT Detector86.0 vs 26.5
  • Copyleaks Detector54.5 vs 0.0
  • Originality.ai Detector24.6 vs 0.0
  • GPTZero Detector15.7 vs 6.1
  • Academic essay Category83.4 vs 48.0
  • News article Category85.7 vs 51.6
  • Marketing copy Category80.4 vs 50.9
  • Application essay Category71.0 vs 47.8
  • Blog post Category73.3 vs 52.9
  • Discussion board Category69.5 vs 50.8

Undetectable AI

4 wins
  • Consistency Score99.6 vs 69.9
  • Meaning preservation Score89.6 vs 80.8
  • Readability Score71.7 vs 63.8
  • Business email Category50.9 vs 40.2

Questions people ask

Is HIX Bypass better than Undetectable AI?

HIX Bypass finished 35.6 points ahead of Undetectable AI in the September 2026 cycle, 73.80 to 38.20, ranking #6 against #11 in a field of 11. HIX Bypass scored higher on 7 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, HIX Bypass or Undetectable AI?

HIX Bypass posted the higher bypass rate, 73.2 vs 0.2, and scored higher on 7 of 7 detectors. HIX Bypass led on GPTZero, Winston AI, Originality.ai, ZeroGPT, Grammarly, QuillBot and Copyleaks; Undetectable AI led on none. The gap holds outside both tools' 95% confidence intervals.

Do HIX Bypass and Undetectable AI keep the original meaning?

Undetectable AI preserved meaning better, 89.6 vs 80.8 on our 0–100 similarity scale. On readability, Undetectable AI rated higher, 71.7 vs 63.8. Penalties this cycle: HIX Bypass None, Undetectable AI −12.0.

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