Waymo has claimed they do 8 million miles a day, and it's in simulation that they've made the lion's share of their progress the past few years. In simulation you can model thousands of variations of any particular corner case, the AI doesn't know the difference between real and virtual environments.
Dedicated test vehicles are collecting many terabytes a day. Google mentioned years ago that they're gathering over a gig per second of data from their test vehicles, and it's likely more than that now. Tesla is gathering a gig or 2 of data at a time from it's hw2 equipped cars here and there. I'm optimistic that Tesla can, by the end of the year, get to about where Google was at in 2011.
Dedicated test vehicles are collecting many terabytes a day. Google mentioned years ago that they're gathering over a gig per second of data from their test vehicles, and it's likely more than that now. Tesla is gathering a gig or 2 of data at a time from it's hw2 equipped cars here and there. I'm optimistic that Tesla can, by the end of the year, get to about where Google was at in 2011.