Do they? I can completely fathom, given my own anecdotal experiences, how garbage Siri quality is today. I haven't built anything against Siri APIs, but I've used Siri and various integrations and every single time I give her a shot, she disappoints me. It can do cookie-cutter, super well-traveled code paths that were engineered together for demos, basically just one off tricks without cohesion, but the whole infrastructure around Siri is not open and has not been improved in any way in many OS versions in any way that I've discerned... But I am not an expert with these systems or APIs.
The Neural Engine architecture especially considering M1/M2 hardware leaps (which are absolutely mind-bogglingly impressive) are both really superb technologies from my layman view as a mere software engineer, with improved battery life as well as performance, a real improvement over Intel x86 architectures - I just don't see Apple as a serious AI player right now, despite head start in AI w/ Siri acq, despite these hardware leaps that may make it easier to do cool stuff in the future like this post. The OCR stuff in Photos is cool and useful and I use it every day, usually to look up my Known Traveler Number.
Ramblings over, just wanted to ask you to opine as to Apple LLM related information if you have any additional context!