How does Meta figure out a teen's age if they lied about their birthday?

Meta uses AI technology to find people it suspects are teens, even if they set up an account with an adult birthday, and places them in Teen Account protections.

What is Apple's age-range signal and where is Meta using it?

In Australia, Meta has begun using Apple's age-range signal, which passes an age range to a developer when a teen downloads an app, as another way to understand age.

When will this come to Threads?

Meta says it will begin launching similar technology globally on Threads later this year.

AI Safety & AlignmentMeta AI Blog4m agoNov 9, 2026, 22:00 JST

Meta expands AI age checks for Teen Accounts on Instagram worldwide

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3 Key Points

What happened
Meta is rolling out its AI technology globally to find users it suspects are teens, even those who used an adult birthday, and place them in Teen Accounts on Instagram.
Why it matters
Millions more teens worldwide will get built-in limits on contact, content and time, giving parents more peace of mind regardless of where they live, per Meta.

WHO IT HITSParents of teenagers on Instagram gain a layer of protection that does not rely on the birthday their child entered, and teens themselves face tighter default limits on who can contact them and what they see. Meta's own age-estimation efforts may also pressure rival apps to follow, though the body only notes Meta's call for TikTok and YouTube to adopt the same practices.

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Context & Analysis

Meta's move builds on more than a decade of work with experts on teen safety tools, and on Teen Accounts already available on Instagram, Facebook and Messenger. The gap it addresses is age: some teens misrepresent their age online, so Meta uses AI to find people it suspects are teens and place them in protections anyway. Meta says it has been placing more teens in age-appropriate protections since first introducing the technology and is encouraged by the results, which is the stated basis for going global.

The expansion also connects to Meta's recent agreement with 52 bipartisan attorneys general, under which Meta says it is investing in stronger technology to catch accounts that may belong to children under 13 and to identify teens aged 13 to 17. Alongside that, Meta is voluntarily using Apple's age-range signal in Australia, while arguing that optional app-store signals leave teens inconsistently protected across apps. Meta has long supported legislation requiring age verification and parental consent at the app-store level, and it is calling on TikTok and YouTube to adopt the same practices.

FAQ

How does Meta figure out a teen's age if they lied about their birthday?: Meta uses AI technology to find people it suspects are teens, even if they set up an account with an adult birthday, and places them in Teen Account protections.
What is Apple's age-range signal and where is Meta using it?: In Australia, Meta has begun using Apple's age-range signal, which passes an age range to a developer when a teen downloads an app, as another way to understand age.
When will this come to Threads?: Meta says it will begin launching similar technology globally on Threads later this year.

Meta AI BlogRead Original Article

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