> Tesla, who are Level 3 at best - curious, because with the ever-increasing rate of AI competence and their massive head start, you'd expect them to have cracked Level 4 by now.

Perhaps (1) Tesla's technology is incapable of level 4 (no LIDAR), or (2) Tesla is not as good at AI as its competitors, or (3) Tesla really truly is a droid company and the car thing was never a priority, or (4) the CEO is on drugs and should not be allowed to wave chainsaws around.