AI Humanizer Benchmark

Best for / Free

Best Free AI Humanizer

How we ranked these

Ranked by overall score, including penalties. Humanizers without a free tier are left out.

Last tested
Sample size
33
Methodology
v1.1.0
AI humanizer ranking for the October 2026 cycle, ordered by Score.
RankHumanizerPenaltiesTrendRaw data
1UndetectedGPTundetectedgpt.ai88.196.077.483.6none.jsonl
2HIX Bypassbypass.hix.ai83.993.577.964.3none.jsonl
3GPTinfgptinf.com80.788.768.377.7none.jsonl
4SmartHumanizersmarthumanizer.ai80.278.282.977.5none.jsonl
5AI Humanizeaihumanize.io78.389.566.472.1-1.0.jsonl
6SuperHumanizersuperhumanizer.ai78.283.975.271.0-1.0.jsonl
7WriteHumanwritehuman.ai75.197.653.271.4-4.0.jsonl
8CleverHumanizercleverhumanizer.ai68.185.965.576.8-9.0.jsonl
9StealthGPTstealthgpt.ai64.562.867.780.6-4.0.jsonl
10ReHumanizerehumanize.io41.61.768.782.7-4.0.jsonl

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

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