gptzero
The best-known checker in education, with sentence-level highlights that show what triggered the score..
what it does
The best-known checker in education, with sentence-level highlights that show what triggered the score. On this site it is listed for ai detector, where it earned its place as: best for teachers. Like every listing here, the description is written by us from hands-on use, and the pricing label is the general model, not a copied sales line. It is 1 of 85 apps we have checked so far, across 25 task guides.
pricing, in plain words
Free use is real but limited: you can start and test it without paying, and a paid plan gives you more usage, higher quality, or advanced features. Prices and limits change, so confirm the current numbers on the official site before you buy.
found on these task pages
alternatives worth trying
Same task, different strengths. Each was checked on the same work.
| tool | pricing | why pick it instead |
|---|---|---|
| Originality.ai | Paid | best for publishers |
| Winston AI | Free Trial | best reports |
| Sapling AI Detector | Freemium | best quick free check |
questions people ask
Is GPTZero free to use?
GPTZero is listed here as freemium. Free use is real but limited: you can start and test it without paying, and a paid plan gives you more usage, higher quality, or advanced features. Prices and limits change, so confirm the current numbers on the official site before you buy.