Leaderboard / Humanizers / Ryne

September 2026 review · rank 10 of 10

Ryne AI detector test results

In the September 2026 HumanizerEval review, Ryne ranked 10 of 10 with a mean strict-bypass rate of 23.6%, behind StealthGPT Super at 96.8%. It cleared all 5 detectors on 0 of 50 texts. Review our full results for the best AI humanizer on the leaderboard page.

Ryne results, September 2026

Website

ryne.ai

Rank

10 of 10

Mean strict bypassThe average of the five detector pass rates: the share of texts each detector called human-written. The leaderboard is ranked by this number.

23.6%

Passed all 5 detectorsTexts that all five detectors called human-written.

0 of 50

Pangram 4.0 strict bypassHow many texts Pangram called human-written (a human score above 50%), with the mean and median human score it gave across all texts.

11 of 50 (22%), mean 25.9%, median 12.58%

GPTZero 2026-09-13-base strict bypassHow many texts GPTZero called human-written (a human score above 50%), with the mean and median human score it gave across all texts.

4 of 50 (8%), mean 8.3%, median 0%

Originality.ai turbo strict bypassHow many texts Originality.ai called human-written (a human score above 50%), with the mean and median human score it gave across all texts.

0 of 50 (0%), mean 2.1%, median 0.13%

ZeroGPT default strict bypassHow many texts ZeroGPT called human-written (a human score above 50%), with the mean and median human score it gave across all texts.

31 of 50 (62%), mean 56.6%, median 59.65%

Winston AI 5.0 strict bypassHow many texts Winston AI called human-written (a human score above 50%), with the mean and median human score it gave across all texts.

13 of 50 (26%), mean 26.3%, median 0.39%

Factual consistency passShare of outputs where key claims, numbers, citations, and named entities remain accurate and correctly attributed.

44%

Naturalness passShare of outputs where wording is fluent and free of awkward or clunky phrasing.

80%

Syntax integrity passShare of outputs where sentences are grammatically complete and free of disruptive run-ons or punctuation errors.

98%

Stance preservation passShare of outputs where the source's position, tone, and intent are not reversed or distorted.

94%

Mean length ratioOutput word count divided by input word count, averaged across texts. 1.00 is the same length; 1.10 is 10% longer.

1.07

Samples over 1.4× inputOutputs more than 1.4× the input’s word count.

0

Samples under 0.6× inputOutputs shorter than 0.6× the input’s word count.

0

Settings usedThe mode each tool ran on: its strongest advertised setting on the cheapest paid tier.

Aggressive, beast mode

Recompute any of this from scores.csv. Strict bypass means an overall human verdict on a human score above 50%.

What the vendor claims, and what we measured

Claim

“Bypass Turnitin and GPTZero with a 99.9% success rate.” (ryne.ai , retrieved September 18, 2026)

Measured

Strict bypass in September 2026: Pangram 22%, GPTZero 8%, Originality.ai 0%, ZeroGPT 62%, Winston AI 26%.

Verdict

Not verified. GPTZero strict bypass was 8% in September 2026, against the 99.9% claimed.

Review history

Head to head

Because every tool saw the same texts, these pages report per-sample agreement, how often each tool bypassed detection on the same input, rather than a difference of averages.

• Ryne vs StealthGPT

  Ryne cleared all 5 detectors on 0 samples where StealthGPT did not; the reverse happened on 46. Both cleared 0.

• Ryne vs WriteHuman

  Ryne cleared all 5 detectors on 0 samples where WriteHuman did not; the reverse happened on 32. Both cleared 0.

• Ryne vs Grubby

  Ryne cleared all 5 detectors on 0 samples where Grubby did not; the reverse happened on 18. Both cleared 0.

• Ryne vs Rephrasy

  Ryne cleared all 5 detectors on 0 samples where Rephrasy did not; the reverse happened on 20. Both cleared 0.

• Ryne vs Undetectable.ai

  Ryne cleared all 5 detectors on 0 samples where Undetectable.ai did not; the reverse happened on 15. Both cleared 0.

• Ryne vs RewriteAI

  Ryne cleared all 5 detectors on 0 samples where RewriteAI did not; the reverse happened on 13. Both cleared 0.

• Ryne vs HIX Bypass

  Ryne cleared all 5 detectors on 0 samples where HIX Bypass did not; the reverse happened on 1. Both cleared 0.

• Ryne vs Humbot

  Ryne cleared all 5 detectors on 0 samples where Humbot did not; the reverse never happened. Both cleared 0.

• Ryne vs BypassGPT

  Ryne cleared all 5 detectors on 0 samples where BypassGPT did not; the reverse never happened. Both cleared 0.