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Just putting in his comments verbatim:

https://x.com/WholeMarsBlog/status/1749250171383542078?s=20

“My first two drives with FSD 12 were both zero intervention. No accelerator press. No speed change. No takeover. No awkward moments.”

https://x.com/WholeMarsBlog/status/1749250622552256866?s=20
“Major improvements in every category #FSD12

https://x.com/WholeMarsBlog/status/1749250952329355336?s=20
“FSD 12 takes speed bumps down to 8”

https://x.com/WholeMarsBlog/status/1749251109133353426?s=20
“FSD Beta 12 takes off from stop signs like a human”

https://x.com/WholeMarsBlog/status/1749252144929325157?s=20
“You know when you have to go around a stopped car, but there’s a car coming from the other side? FSD 12 can do that without stopping and waiting for the oncoming car if possible”

https://x.com/WholeMarsBlog/status/1749252681150120140?s=20
“Fsd 12 pulls over just like elon’s livestream”

https://x.com/WholeMarsBlog/status/1749252916383543363?s=20
“There’s this one section of Lombard Street where for years FSD would read the wrong traffic light on the other side and slow down for no reason FSD 12 handled it flawlessly”

https://x.com/WholeMarsBlog/status/1749254048350613752?s=20
“Very little hesitation #FSD12

https://x.com/WholeMarsBlog/status/1749254144236675146?s=20
“Human like. You can tell it was trained to mimic humans #FSD12

https://x.com/WholeMarsBlog/status/1749254236062572768?s=20
“In the visualization for FSD Beta 12, the path planner line disappears when the car isn’t moving”

https://x.com/WholeMarsBlog/status/1749255171161681993?s=20
“There was this one situation with two fire trucks and fire fighters beside the truck in the path of the car. Kind of weird situation that would trip up FSD 11. FSD 12 handled with no interventions, without doing anything that made anyone uncomfortable”

https://x.com/WholeMarsBlog/status/1749255832691515686?s=20
“Oh I forgot to mention. All these first impresssiond of FSD Beta 12 have been in the rain.”

https://x.com/WholeMarsBlog/status/1749256725730152896?s=20
“Tesla AI team, you’ve outdone yourself yet again”

1x speed 12.1.2 videos

I'm guessing Tesla wanted to get some 12.x deployed to some non-employee customers, and 12.2 wasn't going to be ready to fix known issues of 12.1 before Wednesday's Q4 and FY 2023 Update. One way to still achieve that is to increase the strictness of nags and thresholds for heavy rain / poor weather to deactivate 12.1.2:
 
The 11.4.9 version is very impressive for me..
Hardly any disengagements in the routes I have been using to test FSD
Not sure how v12 will be as good as 11.4.9 without a large number of regressions…

Our biggest problems with 11.4.9 is merging on an on ramp. We have three local ramps like that. On two it will fail and take the ditch every time. On the 3rd it kind of gets it right about half the time. A year ago all three were perfect. I think it may have something to do with warn lines on the road but not sure.

Other than that it is definitely a few notches better in any areas.
 
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Reactions: elasalle
Could be some code they added to fix some other issue. I feel that 11.4.9 has some annoying hacks/workarounds implemented in code that keep having me intervene. My biggest is that car lane changes into a turning lane (both l&r) instead of keeping straight. Sometimes it figures its a turning lane and tries to get back in but not always. Hoping v12 will be rid of all those. Thats why neural nets are the way to go. I feel most code changes made fixes one issue but causes other issues in other places. of course v12 wont be perfect till enough training data is sufficient. but it wont need code fixes to improve.
 
Totally agree with your observations. FSD is super hesitant to make unprotected left turns, despite the coast being clear. I now just hit the accelerator to clear unprotected left intersections, esp those with flashing yellow lights--FSD really seems to gag on those. I wonder if the hesitation and seemingly slow decision making is related to insufficient HW 3.0 processing power?

And FSD "creeps" into oncoming traffic in an unsafe manner for visibility. For example, when making a right, if there is a car approaching from the left, instead of either waiting till the car passes or pull out (which it often has room to do comfortably), FSD instead "creeps" forward INTO the oncoming traffic lane and stops. Like WTF? I then need to slam the accelerator to make the turn and avoid getting hit. This happens all the time at certain intersections. It makes me think this is a visibility issue. They probably need to put forward-side facing cameras in the repeaters, so car can more easily see traffic at obtuse/oblique angle intersections.

They also need to do something regarding spatial memory and routing when intersections have multiple left or right turn lanes. The choice of which turn lane is best varies depending on where one is going after clearing the intersection.

And it doesn't enter turn lanes aggressively enough in heavy traffic. Instead it waits to see the dashed "entry" lines. In heavy traffic, people get into turn lanes early. FSD needs to recognize when traffic is heavy, FSD needs to move car into turn lane sooner, even if it means traveling in a bike lane for a short distance, or squeezing between the stopped cars and the curb. Humans do this all the time, as if they didn't, they would not be able to get in the turn lane.
Are you on V12?