"Waymo’s driverless cars were 6.7 times less likely than human drivers to be involved a crash resulting in an injury, or an 85 percent reduction over the human benchmark, and 2.3 times less likely to be in a police-reported crash, or a 57 percent reduction. That translates to an estimated 17 fewer injuries and 20 fewer police-reported crashes compared to if a human driver would have driven the same distance in the cities where Waymo operates."
https://www.theverge.com/2023/12/20/24006712/waymo-driverless-million-mile-safety-compare-human