HumanizerEval

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September 2026 review · same 50 texts

Humbot vs BypassGPT

In the September 2026 HumanizerEval review, Humbot and BypassGPT rewrote the same 50 English texts. Humbot cleared all 5 detectors on 0 of them; BypassGPT on 0. The difference is mostly GPTZero: on 3 samples Humbot passed it where BypassGPT failed, and the reverse never happened. On Pangram, Originality.ai, ZeroGPT and Winston AI the two were close to even.

Per-sample agreement

Per-sample agreement, September 2026. Counts are out of the 50 shared samples, computed at the 50% human-score threshold. Margin counts the samples only one tool passed, higher count first.
DetectorPassed more oftenMarginBoth passedNeither passed
Pangram 4.0Tied0 to 0050
GPTZero 2026-09-13-baseHumbot3 to 02819
Originality.ai turboHumbot8 to 6279
ZeroGPT defaultTied0 to 0500
Winston AI 5.0Tied0 to 0500
All 5 detectorsTied0 to 0050

Every count is computed from scores.csv at build time, not transcribed. “Neither passed” counts the texts that defeated both tools; on Pangram that was 50 of 50 here.

Quality and output discipline

Quality and output discipline, September 2026.
MeasureHumbotBypassGPT
22%22%
0%2%
98%94%
70%78%
1.121.12
00
00
AdvancedEnhanced
Websitehumbot.ai bypassgpt.ai

On per-sample quality scores, Humbot scored higher on 8 samples, BypassGPT on 10, and the two tied on 32. BypassGPT’s output was shorter on 26 of 50 samples; mean length ratios were 1.12 and 1.12, or 12% longer than the input and 12% longer than the input respectively.

Where each one outperforms the other

Humbot

  • GPTZero: passed 31 of 50 against 28, including 3 samples where BypassGPT failed, against 0 the other way.
  • Originality.ai: passed 35 of 50 against 33, including 8 samples where BypassGPT failed, against 6 the other way.
  • Syntax integrity: 98% against 94%.

BypassGPT

  • Originality.ai: passed 6 samples where Humbot failed, even though it was detected more often overall, passing 33 to 35.
  • ZeroGPT: tied at 50 of 50 but on a higher mean human score, 97.2% to 96.7%. It passed 0 samples where Humbot failed.
  • Winston AI: tied at 50 of 50 but on a higher mean human score, 98.0% to 97.4%. It passed 0 samples where Humbot failed.
  • Naturalness: 2% against 0%.
  • Stance preservation: 78% against 70%.
  • Length: shorter output on 26 of 50 samples, which matters under a word limit.

Humbot vs BypassGPT FAQ

Is Humbot better than BypassGPT?

In the September 2026 HumanizerEval review, Humbot cleared all 5 detectors on 0 of the 50 shared samples and BypassGPT on 0. On Pangram, Originality.ai, ZeroGPT and Winston AI the two were within 6 points of each other. Quality ran 8 samples to 10, with 32 ties.

Which humanizer is best for Pangram, Humbot or BypassGPT?

Neither. In September 2026, Humbot passed Pangram on 0 of the 50 shared samples and BypassGPT on 0. On 0 samples Humbot passed where BypassGPT failed; the reverse never happened. Both failed on 50.

Which humanizer changes the text less?

BypassGPT. It scored higher on per-sample quality on 10 of 50 samples, against 8. Humbot’s outputs averaged 1.12× the input length and passed factual consistency on 22%; BypassGPT’s averaged 1.12× and passed on 22%. On stance preservation the split was 70% to 78%. BypassGPT produced the shorter output on 26 of 50 samples.

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