YouTube on Wednesday will begin testing a new age-verification system in the U.S. that relies on artificial intelligence to differentiate between adults and minors, based on the kinds of videos that they have been watching.
The tests initially will only affect a sliver of YouTube's audience in the U.S., but it will likely become more pervasive if the system works as well at guessing viewers' ages as it does in other parts of the world. The system will only work when viewers are logged into their accounts, and it will make its age assessments regardless of the birth date a user might have entered upon signing up.
