AI Humanizer Benchmark

Best for / Meaning preservation

Best AI Humanizer for Meaning Preservation

How we ranked these

Ranked by the meaning-preservation sub-score alone: the semantic similarity between each input and its rewrite, rescaled as in the overall formula and averaged over every test. No detector result, readability 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
1SmartHumanizersmarthumanizer.ai82.978.282.977.5none.jsonl
2HIX Bypassbypass.hix.ai77.993.577.964.3none.jsonl
3UndetectedGPTundetectedgpt.ai77.496.077.483.6none.jsonl
4SuperHumanizersuperhumanizer.ai75.283.975.271.0-1.0.jsonl
5Undetectable AIundetectable.ai72.91.872.973.2-12.0.jsonl
6ReHumanizerehumanize.io68.71.768.782.7-4.0.jsonl
7GPTinfgptinf.com68.388.768.377.7none.jsonl
8StealthGPTstealthgpt.ai67.762.867.780.6-4.0.jsonl
9AI Humanizeaihumanize.io66.489.566.472.1-1.0.jsonl
10CleverHumanizercleverhumanizer.ai65.585.965.576.8-9.0.jsonl
11WriteHumanwritehuman.ai53.297.653.271.4-4.0.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.