Origin by GPTZero

As AI-generated content becomes harder to distinguish from human writing, the ability to reliably identify its source is becoming increasingly important—especially in education. Origin is an AI detector built by the GPTZero team with a clear mission: preserve an internet where authentic human content can be identified and verified.

Origin works across the web, letting users highlight and right-click any text to scan it, or paste content directly into the tool. On Google Docs, the Origin extension goes further—writers can prove they created their own work by replaying the document's edit history and sharing a verification report. Trusted by millions of educators and institutions, and recognized by major publications, Origin is one of the most established tools available for distinguishing human from AI writing.