Apple Intelligence is eating up to 30GB on some Macs after macOS 27

macOS 27 Golden Gate
Install macOS 27 Golden Gate, connect to the internet, and Apple Intelligence arrives whether you asked for it or not. The on-device models download automatically. There is no master switch left to stop them.
Apple’s own support document says the latest features need up to 14GB on Macs with an M3 chip or later and at least 12GB of unified memory, and up to 8GB on other compatible Macs. Real-world Storage readings are often higher.
MacRumors recorded 20.67GB for Apple I