Apple Intelligence runs on-device, mostly. When it needs to do anything in the cloud, it tells you. And if you looked into how they have set things up, it's a much more private arrangement even in the cloud, compared to the others.

And of course there's no privacy with OpenAI either, not anymore so than with Google. But at least I know what I'm buying with that - an actual SOTA model, not a runner up. Google can't even beat Anthropic.