HumanizerBench is operated by WriteHuman. This page summarizes its published October 2026 cycle; we did not run or independently reproduce the tests. HumanizerBench says its inputs, outputs, detector verdicts and scoring code are published for verification. Review the original leaderboard and methodology before treating the scores as evidence.
Full October 2026 AI humanizer leaderboard
The table preserves HumanizerBench's overall ranks. Use the controls to reorder the same 14 tools by a single metric; the displayed overall rank does not change.
| Overall rank | Humanizer | Overall | Bypass rate | Meaning | Readability | Penalties |
|---|---|---|---|---|---|---|
| 1 | WriteHumanLeader | 74.89 | 88.8 | 60.0 | 55.9 | None |
| 2 | StealthGPT | 74.50 | 88.1 | 61.8 | 72.6 | -3.0 points |
| 3 | Undetectable.ai | 71.18 | 74.6 | 79.2 | 63.9 | -5.0 points |
| 4 | Clever AI Humanizer | 69.02 | 80.1 | 59.5 | 68.6 | -4.0 points |
| 5 | Humanize AI Pro | 68.87 | 63.4 | 75.0 | 62.2 | -1.0 points |
| 6 | AI Humanize io | 68.24 | 66.5 | 68.6 | 56.9 | None |
| 7 | Super Humanizer | 67.58 | 61.8 | 76.6 | 56.6 | -1.0 points |
| 8 | Stealth Writer | 65.98 | 71.3 | 71.6 | 41.8 | -3.0 points |
| 9 | HIX Bypass | 65.14 | 56.8 | 78.9 | 42.2 | None |
| 10 | Walter Writes | 63.53 | 72.8 | 70.4 | 63.5 | -9.0 points |
| 11 | SupWriter | 62.75 | 50.0 | 77.5 | 49.2 | None |
| 12 | Phrasly | 61.79 | 95.3 | 49.9 | 44.2 | -11.0 points |
| 13 | Humbot | 61.74 | 71.4 | 68.6 | 65.0 | -10.0 points |
| 14 | Grammarly | 61.29 | 38.1 | 85.5 | 72.2 | -3.0 points |
Showing the published overall ranking. Last tested 1 October 2026; source checked 3 October 2026.
How the overall score is calculated
HumanizerBench combines four dimensions rather than treating detector bypass as the only goal. Penalties are then deducted when outputs show specified quality problems.
Columns are scores on a 0-100 scale, not guarantees. The detector metric averages normalized verdicts; meaning uses rescaled embedding similarity; readability is model-rated. October uses Methodology v1.3.0 and Scoring v1.4.0, with six detectors and 30 prompts per tool.
What stands out in the October results
WriteHuman scores 74.89; StealthGPT scores 74.50. That small gap is not a universal buying recommendation.
Grammarly leads meaning preservation, StealthGPT leads readability, and Phrasly leads the detector metric.
Phrasly loses 11 points to meaning and length penalties. Inspect the revision, not just the detector column.
October uses a revised methodology and a different test set. A change from an older score is not, by itself, evidence that a tool improved or declined.
Why the penalty column matters
A high detector score can look attractive even when a rewrite has changed the message or padded the text. HumanizerBench applies deductions for severe meaning drift, length inflation, length deflation, near-identical output and refusals.
What this leaderboard cannot guarantee
This is a fixed October 2026 snapshot using specific paid plans, settings, prompts, detectors and scoring rules. A different paragraph, tool setting, detector update or future benchmark cycle may produce a different result.
HumanizerBench is also operated by WriteHuman, the tool ranked first. Its published repository and methodology improve auditability, but readers should still account for that relationship and avoid treating the ranking as independent endorsement.
Frequently asked questions
Is HumanizerBench independent?
No. HumanizerBench states that it is operated by WriteHuman. It also publishes methodology and cycle data so the calculations can be examined and reproduced.
Does first place mean WriteHuman is best for every task?
No. It ranked first on the October 2026 composite score, but other tools led individual metrics. The right choice depends on meaning, readability, editing needs and acceptable tradeoffs.
What does bypass rate mean here?
HumanizerBench describes it as the average normalized human-likelihood score across six detectors and the completed tests. It is not a promise for future text.
How often will this page change?
This page is a fixed October 2026 snapshot. We will update it manually when we review a newer published benchmark cycle.
Can any AI humanizer guarantee a detector result?
No. Detectors, models and text inputs change. Always review meaning, facts, policy and final writing quality instead of relying on one score.