AI humanizers that pass Copyleaks
No measured result against Copyleaks has been published yet. What follows is what vendors claim, kept separate from what we can show.
Read this first
Sold to institutions as well as individuals, with its own LMS integrations. Scores here move less than the consumer detectors, and its institutional version is not necessarily the one we test.
Nothing to show here yet, and we are not going to invent it
This page lists humanizers we have personally run through Copyleaks. That number is currently zero, so the list is empty. Filling it with vendor marketing would make the page look finished and make it worthless.
The panel is GPTZero, Originality.ai, Copyleaks, Winston AI, Sapling, ZeroGPT. Reviews are published as they are done, and you can run the same procedure yourself today.
Vendors that claim to beat Copyleaks
vendor claim17 listed tools name Copyleaks in their own marketing. This is what they say about themselves. It is not a result, we have not checked it unless the tool also appears in the measured table above, and it carries no date.
| Tool | Status here | Measured against Copyleaks? |
|---|---|---|
| AI Bypass | Docs checked | not tested |
| HIX Bypass | Docs checked API | not tested |
| Netus AI | Docs checked | not tested |
| Rephrasy | Docs checked API | not tested |
| StealthGPT | Docs checked API | not tested |
| AI Humanizer | Docs checked | not tested |
| AIHumanize.io | Docs checked API | not tested |
| HumanizeAI.io | Docs checked | not tested |
| Rewritify | Docs checked | not tested |
| Ryne AI | Docs checked API | not tested |
| SupWriter | Docs checked API | not tested |
| Surfer AI Humanizer | Docs checked | not tested |
| AI Undetect | Docs checked API | not tested |
| Humbot | Established API | not tested |
| Bypass AI | Listed API | not tested |
| BypassGPT | Listed API | not tested |
| UnAIMyText | Listed | not tested |
About Copyleaks
Full listing →| What it is | Enterprise AI and plagiarism detection in one report, with LMS integrations and 30+ language support. |
|---|---|
| Accuracy the vendor claims | “over 99% accuracy backed by independent third-party studies, with an industry-low .03% false positive rate”
source - the vendor's own page, not an audit |
| Price | from USD 13.99 |
| False positives | Like every detector on this site, Copyleaks flags genuine human writing sometimes. What a detector score means. |