The Pixel 2 has a surprise: Google's first custom imaging chip
 

Google didn't spill all the details about the Pixel 2 and Pixel 2 XL at its October 4th event. As it turns out, these phones have a secret weapon: Google's first custom imaging chip (and indeed first system-on-chip of any kind), the Pixel Visual Core...

https://www.engadget.com/2017/10/17/...-imaging-chip/