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Turnitin AI Detector

Disclaimer

Last updated: 18 October 2026

This notice is shown next to every result:

This is an automated estimate, not an official Turnitin or institutional result. AI detectors can produce false positives, especially for non-native English writers. Never use a score alone as proof.

An estimate, not a fact

Turnitin AI Detector uses an automated AI detection service to estimate how AI-like a text reads. The score is a statistical guess based on writing patterns. It cannot know how a text was actually written, and it is not proof that anyone used, or did not use, AI.

Results can be wrong

  • Human writing can get a high score (a false positive). This happens more often with non-native English writers, formal or formulaic writing, and very short texts.
  • AI-written text that has been edited or rewritten can get a low score.
  • The same text can get a slightly different score at a different time.

How to use a result

Treat the score as one signal among many. Never use it alone to accuse, grade or punish anyone. If a result matters, talk to the writer, look at drafts and notes, and use your own judgment.

Independent tool

Turnitin AI Detector is an independent tool. It is not connected to any school, university, publisher or other detection service, and its scores are not the same as any other tool's.

No professional advice

Nothing on this site is legal, academic or professional advice. See our Terms of Use for the full conditions of use.