HumanizerEvalSuggest a humanizerSuggest a tool

Leaderboard / Compare / RewriteAI vs Phrasly

October 2026 review · same 50 texts

RewriteAI vs Phrasly

In the October 2026 HumanizerEval review, RewriteAI and Phrasly rewrote the same 50 English texts. RewriteAI cleared all 6 detectors on 0 of them; Phrasly on 0. The difference is mostly Originality.ai Turbo: on 14 samples RewriteAI passed it where Phrasly failed, and the reverse happened on 1. On Pangram, Originality.ai 5.0 and Winston AI the two were close to even.

Per-sample agreement

Per-sample agreement, October 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 4.1Phrasly2 to 1047
GPTZero 2026-10-07-baseRewriteAI12 to 71516
Originality.ai TurboRewriteAI14 to 1350
Originality.ai 5.0 model-5.0Tied0 to 0050
ZeroGPT defaultRewriteAI6 to 2393
Winston AI 5.0RewriteAI4 to 2431
All 6 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 47 of 50 here.

Quality and output discipline

Quality and output discipline, October 2026.
MeasureRewriteAIPhrasly
40%50%
52%70%
100%98%
78%84%
1.211.10
40
00
API default, passages of up to 280 words (300-word API limit)Standard model, API default (Phrasly Ultra not enabled on the account)
Websiterewriteai.com phrasly.ai

On per-sample quality scores, RewriteAI scored higher on 11 samples, Phrasly on 23, and the two tied on 16. Phrasly’s output was shorter on 41 of 50 samples; mean length ratios were 1.21 and 1.10, or 21% longer than the input and 10% longer than the input respectively.

Where each one outperforms the other

RewriteAI

  • Pangram: passed 1 sample where Phrasly failed, even though it was detected more often overall, passing 1 to 2.
  • GPTZero: passed 27 of 50 against 22, including 12 samples where Phrasly failed, against 7 the other way.
  • Originality.ai Turbo: passed 49 of 50 against 36, including 14 samples where Phrasly failed, against 1 the other way.
  • ZeroGPT: passed 45 of 50 against 41, including 6 samples where Phrasly failed, against 2 the other way.
  • Winston AI: passed 47 of 50 against 45, including 4 samples where Phrasly failed, against 2 the other way.
  • Syntax integrity: 100% against 98%.

Phrasly

  • Pangram: passed 2 of 50 against 1, including 2 samples where RewriteAI failed, against 1 the other way.
  • GPTZero: passed 7 samples where RewriteAI failed, even though it was detected more often overall, passing 22 to 27.
  • Originality.ai Turbo: passed 1 sample where RewriteAI failed, even though it was detected more often overall, passing 36 to 49.
  • Originality.ai 5.0: tied at 0 of 50 but on a higher mean human score, 9.4% to 4.9%. It passed 0 samples where RewriteAI failed.
  • ZeroGPT: passed 2 samples where RewriteAI failed, even though it was detected more often overall, passing 41 to 45.
  • Winston AI: passed 2 samples where RewriteAI failed, even though it was detected more often overall, passing 45 to 47.
  • Factual consistency: 50% against 40%.
  • Naturalness: 70% against 52%.
  • Stance preservation: 84% against 78%.
  • Length: shorter output on 41 of 50 samples, which matters under a word limit.

RewriteAI vs Phrasly FAQ

Is RewriteAI better than Phrasly?

In the October 2026 HumanizerEval review, RewriteAI cleared all 6 detectors on 0 of the 50 shared samples and Phrasly on 0. On Pangram, Originality.ai 5.0 and Winston AI the two were within 6 points of each other. Quality ran 11 samples to 23, with 16 ties.

Which humanizer is best for Pangram, RewriteAI or Phrasly?

Phrasly. In October 2026, RewriteAI passed Pangram on 1 of the 50 shared samples and Phrasly on 2. On 1 samples RewriteAI passed where Phrasly failed; the reverse happened on 2. Both failed on 47.

Which humanizer changes the text less?

Phrasly. It scored higher on per-sample quality on 23 of 50 samples, against 11. RewriteAI’s outputs averaged 1.21× the input length and passed factual consistency on 40%; Phrasly’s averaged 1.10× and passed on 50%. On stance preservation the split was 78% to 84%. Phrasly produced the shorter output on 41 of 50 samples.

More comparisons