Article praises Tesla's custom AI chip. It is something many criticize as a waste of development resources, while they could have used off-the-shelf components for the same task. Tesla's real advantage is their battery production. No one else can compete with them on battery price or production volume at a similar quality: https://www.cnbc.com/2020/02/10/teslas-competitors-play-catc...
They did use off-the-shelf components. They performed poorly and they resulted to developing a custom die with the right components to handle the task of computer vision. They explicitly stated this in multiple interviews. The off-the-shelf solution was crap.