AI humanizers that pass GPTZero
No measured result against GPTZero has been published yet. What follows is what vendors claim, kept separate from what we can show.
Read this first
The detector most students meet first, and the one most humanizers are tuned against. A low GPTZero score is the weakest signal on this page precisely because it is the most targeted.
Nothing to show here yet, and we are not going to invent it
This page lists humanizers we have personally run through GPTZero. 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 GPTZero
vendor claim21 listed tools name GPTZero 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 GPTZero? |
|---|---|---|
| Phrasly | Docs checked API | not tested |
| AI Bypass | Docs checked | not tested |
| GPTinf | 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 |
| Hastewire | Docs checked API | not tested |
| Humanize AI | 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 GPTZero
Full listing →| What it is | AI text detector for educators and publishers with sentence-level highlighting and batch file scanning. |
|---|---|
| Accuracy the vendor claims | “99% accuracy rate when spotting AI-generated text vs. human writing; 96.5% on mixed documents; false positive rate for ESL writing reduced to 1%”
source - the vendor's own page, not an audit |
| Price | Not published |
| False positives | Like every detector on this site, GPTZero flags genuine human writing sometimes. What a detector score means. |