Did they say, it would run locally?
They said it would be available on their upcoming flagship product, sure, that’s marketing. To me, this does not imply that the heavy-lifting is on the phone’s hardware.
(And maybe a special-purpose AI, which requires significantly smaller models, can run on the phone, which is a high-end mobile computer.)
Or no one wants 8GB RAM octa-cores when they have a phone with similar specs in their pockets…