Being best in class for on-device AI is a huge market opportunity. Trying to do it all would be dumb like launching Safari without a google search homepage partnership.

Apple can focus on what they are good at which is on device stuff and blending AI into their whole UX across the platform, without compromising privacy. And then taking advantage of a market leader for anything requiring large external server farms and data being sent across the wire for internet access, like AI search queries.