Wasn't it just in the news that they are firing a ton of these?
Re:40% of Google users now connect via IPv6
by i_have_an_idea on Sunday July 03, 2022 @09:09PM
(#31972477)
Yes! That's how I actually found out they have them.
https://www.tesla.com/careers/search/job/data-annotation-spe...
But, I would be surprised if they don't also use 3rd party labelled data sets.