Apple is shipping a ~3 billion parameter LLM for macOS, iOS, iPadOS, and visionOS; it's the largest LLM for mobile devices. Right now, Meta, Google, etc., mobile LLMs are in the 1.5—2 billion parameter range. It can seamlessly use much larger models via Apple's Private Cloud Compute servers.

Probably within a couple of weeks of iOS 26, iPadOS 26, and macOS 26 shipping this fall, Apple will have the most widely deployed LLMs accessible to 3rd-party app developers.

In beta versions of the operating systems, end users can already create automations that incorporate the use of these Foundation Models.

More details: "Meet the Foundation Models Framework" -- https://developer.apple.com/videos/play/wwdc2025/286

Thanks for this, I had no idea what Apple was actually up to regarding LLMs. It's really hard to keep up in this space.

You are not alone. The amount of noise in this space is insane and no human can keep up. We need agents to keep us up to date :)