On-Device Siri

Starting with iOS 15 and macOS 12, all of your Siri requests are going to be processed directly on the device, without any need to phone home to Apple’s cloud servers to understand what you’re trying to say. This will be a considerable boon for privacy, but it’s only going to be available on an M1 Mac.

In addition to the privacy benefits, this also means that M1 Mac users won’t have any time limit for how long their Siri requests can be. On Intel Macs, you’ll still only be able to talk for around 60 seconds before Siri needs to cut you off to send your words off for processing in the cloud.