You can do 8b local on the latest iPhones.
Again, though, my experience is limited. I imagine others know something I do not and would absolutely love to hear more from people who are running tiny models on low-end hardware for things like code assistance, since that's where the use-case would lie for me.
At the moment, I subscribe to "cloud" models that I use for various tasks and that seems to be working well enough, but it would be nice to have a personal model that I could train on very specific data. I'm sure I am missing something, since it's also hard to keep up with all the developments in the Generative AI world.