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.
FSD 12 is not used on freeways. City streets only. You’re observing behavior of the old stack if you’re seeing notices for lane change reasoning.
They’ll be unifying it later this year.
I'd have expected things like that to roll out on freeways first and later come to city streets, because freeways should be an easier case since you don't have oncoming traffic, cross traffic, pedestrians, bicycles, and traffic lights to deal with.
Ah yes, of course - we just have to wait for the next version. The response seen in the Twitter replies, YouTube comments and now HN comments to descriptions of FSD foulups for the best part of a decade now.
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.