Does the Pixel have some specific hardware that this uses, or is it simply limited to Pixel to limit the rollout? I am curious if I should get my hopes up to see this on gboard with non-Pixel Android devices.
The Pixel 2+ does have a coprocessor for compute workloads (the Visual Core). However users here have reported this working on a Pixel 1, which doesn't have that chip.
The Verge says it may reach other devices later.
It sounds like it's both better than the old dictation model, and significantly smaller.