https://www.google.com/amp/s/www.theverge.com/platform/amp/2018/2/12/17004734/amazon-custom-alexa-echo-ai-chips-smart-speaker https://www.google.com/amp/s/www.t

https://www.google.com/amp/s/www.theverge.com/platform/amp/2018/2/12/17004734/amazon-custom-alexa-echo-ai-chips-smart-speaker https://www.google.com/amp/s/www.theverge.com/platform/amp/2... The (expensive) report from The Information upon which that article was based speculates a little more about chips for training.