ANE power usage for always-on Hey Siri wake word detection is impressively low. The language models we have are orders of magnitude way too big, but they won’t

ANE power usage for always-on Hey Siri wake word detection is impressively low. The language models we have are orders of magnitude way too big, but they won’t be for long. I think we’ll be surprised. For comparison, a quantized mobilenetv2 takes 3.7MB disk space to solve the same image understanding task as the old VGG Caffe models which take 550MB. We’ve come a long way in six years.