This pretty much jibes with my experience. Autopilot has phantom breaking still, but navigate-on-autopilot feels more predictable on the freeway and more useful than FSD. The fact that v12 has “exited beta” and is now the “Supervised” mode doesn’t give me confidence right now. The iterative progress it went through during the beta was really good — I felt that each point release was getting closer to a polished system that could be trusted. The v12 stack supposedly replaced all of the prior work with “photons in, photons out” straight neural networks, but I think this simply didn’t result in the stability the system needs. The v12 software behaves pathologically in situations where autopilot is excellent.
As a concrete example, it routinely switches out of the current lane to “follow route” and then immediately slams on the brakes to slow down, when no turn or exit is present. Then it turns on the signal and dutifully tries to get back into the previous lane. On screen, it says it’s wanting to change into a faster lane. This will happen multiple times on the same road. This is on CA-57 northbound in SoCal —- an area where I would expect there to be pretty good testing.
Personally, AP / navigate-on-autopilot is still superior. On city streets, sure, FSD can sort-of manage. But it isn’t trustworthy enough for me to use it.