They’ve been working on a GPT for a while - Apple is reportedly spending ‘millions of dollars a day’ training AI - The Verge
10 years with the way it’s all advancing is probably over the timeline as I understand/see it in general, we’re probably more in the 3-5 year mark, whether it’s in the realms of being human like, is a whole other debate
On the Android side it’s quite laughable/expected of Google, where they’ve got Google Assistant and a Gemini app (not available in Europe/UK yet) - https://gemini.google.com/app/download
Presumably Gemini will eventually be merged with Google Assistant/Google Home devices.
You’d assume Apple will want to do similar to enhance the offering.