AI Humanizer Benchmark

Best for / Readability

Best AI Humanizer for Readability

How we ranked these

Ranked by the readability sub-score alone: how clear and fluent each rewrite is, averaged over every test. No detector result, meaning score or penalty is included.

Last tested
Sample size
33
Methodology
v1.1.0
AI humanizer ranking for the October 2026 cycle, ordered by Score.
RankHumanizerPenaltiesTrendRaw data
1UndetectedGPTundetectedgpt.ai83.696.077.483.6none.jsonl
2ReHumanizerehumanize.io82.71.768.782.7-4.0.jsonl
3StealthGPTstealthgpt.ai80.662.867.780.6-4.0.jsonl
4GPTinfgptinf.com77.788.768.377.7none.jsonl
5SmartHumanizersmarthumanizer.ai77.578.282.977.5none.jsonl
6CleverHumanizercleverhumanizer.ai76.885.965.576.8-9.0.jsonl
7Undetectable AIundetectable.ai73.21.872.973.2-12.0.jsonl
8AI Humanizeaihumanize.io72.189.566.472.1-1.0.jsonl
9WriteHumanwritehuman.ai71.497.653.271.4-4.0.jsonl
10SuperHumanizersuperhumanizer.ai71.083.975.271.0-1.0.jsonl
11HIX Bypassbypass.hix.ai64.393.577.964.3none.jsonl

11 humanizers ยท 7 detectors ยท scores out of 100, higher is better. Click a column to sort; hover a penalty for the breakdown.