Our take
We would not rely on it for any decision that affects someone.
At a glance
- Best for: Casual, free checks
- Free option: Free web checks
- Website: zerogpt.com
Main features
- Free paste-in checks
- Highlights suspected passages
Strengths
- Free and fast
Limits and concerns
- Widely reported false positives on well-known human texts
- Little published independent validation
- Limited explanation of how scores are produced
Remember: no detector score is proof that someone used AI. How accurate are AI detectors?
Last reviewed October 2026. Features and free limits change often; check the product’s site for current details. We have no affiliate relationship with any product reviewed here.