Meta will apply its AI-powered age estimation technology to Instagram users worldwide, the company said Monday, expanding a system that launched in the US, EU and Brazil last year. The change automatically places "millions more teens" into Instagram's Teen Account protections — including users who registered with a fake adult birthday and were never caught by any ID check.
The system does not ask for documents. It looks for signals that a user is under 18: the profiles and types of content they interact with, the birthday messages they receive, and what Meta calls "general themes and visual cues" from the photos and videos they upload — including cues like height and bone structure. In Australia, Meta has started folding in Apple's age-range signal as an additional input, one of the first uses of the API Apple built in response to Australia's under-16 social media ban.
What happens next depends on the estimate. Accounts believed to belong to children under 13, the minimum age for Meta's social apps, are removed outright. Users estimated to be 13 to 17 are moved into Teen Accounts even if their profile says otherwise: those accounts are private by default, see a restricted set of content, and cannot receive direct messages from strangers. Users aged 16 or younger cannot loosen those settings without a parent or guardian signing off.
Parents are being pulled into the loop as well. Meta says US parents will start receiving an Instagram notification next month explaining how the age estimation process works and how they can make sure their teen's age is accurately reflected on the platform — an implicit acknowledgment that the system will sometimes get it wrong, in both directions.
The timing is not accidental. The global rollout follows a $17.1 billion settlement Meta agreed to in August over teen-safety lawsuits, under which the company committed to strengthening its age assurance practices and tightening restrictions on teen users. Meta has not said whether the automatic age checks it rolled out to US Facebook accounts in May will also expand globally.
The expansion makes Instagram one of the broadest deployments of automated age inference ever run by a major platform: behavioral patterns, the text of birthday greetings and estimated physical characteristics from uploaded photos now reclassify accounts at scale, without an explicit verification step. Meta did not detail how those signals are stored, how long they are kept, or how a user incorrectly classified as a teen — or an unprotected teen misjudged as an adult — can contest the result. That gap between deployment speed and due process is where regulators, and more lawsuits, are likely to focus next.
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