Check again: https://x.com/NewsFromGoogle/status/2010760810751017017?s=20

"These models will help power future Apple Intelligence features, including a more personalized Siri coming this year."

I see what you mean, though I think “these models” refers to Apple’s Foundation Models, which “will be based on Google's Gemini models and cloud technology.” I guess it depends on wrist “based” means.