Google has revealed that it will be releasing Android 8.1 for developers soon. At the same time, it revealed a previously unknown morsel about some previously unknown custom silicon it has embedded in its Pixel 2s that will be enabled with the update.
https://www.notebookcheck.net/Android-8-1-Oreo-coming-soon-to-Pixel-2-will-enable-custom-Pixel-Visual-Core-processor.258558.0.html