The biggest NEW thing here is that this isn't white-labeled. Apple is officially acknowledging Google as the model that will be powering Siri. That explicit acknowledgment is a pretty big deal. It will make it harder for Apple to switch to its own models later on.

Is this another one of those AI deals where no real money changes hands? In this case, doesn't this just offset the fee Google pays Apple for having their search as the default on Apple devices?