I assume they will produce their own AI once the dust settles, just like they produce their own chips now.
Apple has generally been a company that waits, gets criticized for being behind, and then produces a better version (more usable, better integrated, etc), claims it is new, and everybody buys it. Meanwhile a few people moan about how Apple wasn't actually the first to make it.
Old Apple wasn't run by ex-Microsoft and ex-consultancy MBAs... a serious cultural rot has set in and the much of the "bottom up" component powering much of the innovation is nothing but smoldering coals.
The golden goose is dead.