Google has launched the Pixel smartphones back in October. Google Pixel were first smartphones to come with Google Assistant in built.
https://twitter.com/hallstephenj/status/827198401557180416
Now there are confirmations that the Android Assistant is coming to Nexus 5x and Nexus 6P in next major update. The latest news comes from a trusted Twitter account named Stephen Hall who is a senior editor at 9to5 Google. He has got confirmation. He also got is confirmed that the Android Assistant is coming to Nexus Player as well .
https://twitter.com/hallstephenj/status/827204900853600260
There were a user asked about Nexus 6 but the response was negative. He said, ” End of life” further he said, ” Correction: I’m assuming end of life because Nexus 6/9 aren’t even getting Android 7.1.2 .