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FSD v12.x (end to end AI)
- Thread starter Buckminster
- Start date
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- Tags
- #fixphantombraking autopilot chill is not chill elon is an ass fix fsd extreme late deceleration fsd does not commit to go fsd does not maintain proper speed fsd doesn't read signs properly fsd hard and late braking fsd has decision wobble fsd jerky driving fsd late deceleration fsd sometimes may not detect train crossings fsd stops too early too quickly fsd stops too far behind line fsd stops when there is zero visibility fsd tailgating in city streets fsd very slow at stops fsd will never enable l3 with hw4
Another edge case, bad road designs, this one is narrow road, dark driving, fork in road, no guide lines, had to disengage as FSD got confused in the middle and would have hit the split
Again,Ike my other edge case, miss aligned intersection, feels like FSD does not use map data, just cameras
Come on 12.4
Again,Ike my other edge case, miss aligned intersection, feels like FSD does not use map data, just cameras
Come on 12.4
Todd Burch
14-Year Member
Note all of this is speculation but my best guess on what’s happening based on everything I’ve seen and read about it:
The perception stack is running for both v11 and v12. That is the input for both the v11 C++ planner and the v12 neural net planner. This brings in video input, registers it, identifies things (cars, stoplights, lanes, drivable space, etc) and converts it into “vector space”.
Onscreen visualizations are likely separately fed from the perception stack to the graphics hardware and would neither introduce computational demands on the inference computer nor would it introduce any significant latency into the FSD stack.
There will definitely still be C++ code in the system—but I suspect the heaviest computational demands by far would be the complex heuristic planning code of v11.
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Todd Burch
14-Year Member
I think best advice would be that you only need to do it:
1. If the system tells you to, or
2. If you start experiencing wonky behavior that a reboot doesn’t fix and that others don’t seem to be experiencing.
Teslascope shows 2024.15.5 / 12.4.1 is downloading for 2 vehicles on 2024.3.25 and 1 vehicle on 2024.14.7. TeslaFi shows 2 Model 3 and 1 Model Y downloading. Probably early access / those who still have video snapshot button.
Todd Burch
14-Year Member
You can use the USB stick that came with the car. I’ve also had luck using a slim 1TB external portable HDD, although depending on how quickly or slowly it boots up you might get an error and have to unplug/replug it when you get into the car. (Not sure if that’s a bug or something that happens with particularly slow drives.) The rest of the requirements are in the manual but lots of different USB drives will do. Don’t go less than 64GB minimum. Since the system is recording video so often, if your drive is too small you’ll get a lot of read/write cycles, which can wear the drives out faster.
AlanSubie4Life
Efficiency Obsessed Member
Documented 300-400ms, see prior posts. Pretty definitive, high quality video evidence.
FSDtester#1
Large Member
So you're telling me to go burn
one... no problem. Once I finish my Crown 
and Ginger 
... edit: just checked X, a bunch are getting it. Looks like the usual crowd. Haven't burned one yet.
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At one point Elon was saying 10ms too. That'd be the day.
I could be way off base but I bet there will be even more dawdling at stop sign intersections if v12.4.1 finally removes the 10.69 stop short/creep crutch.
I was hoping 12.4.x would be on the .20 branch so I could be disappointed about the new matrix headlight features.
gottagofast
2022 Model 3 Performance
FSDtester#1
Large Member
Tried 3 times with every trick in the book including service autopilot check, cannot get software check to update from 2 days ago. That has never happened to me before. Will try again after my next refill.
Love the disclaimer:
Love the disclaimer:
I noticed that mine wouldn't update today as well.
I am not sure we, the users, are at any position to quantify the latency. Latency could be HW or SW or both. How would you identify what it is?
fasteddie7
Active Member
I knew this moment would come. Checking tmc at midnight, reading this, and sneaking out of bed to the garage to burn an update check.So you're telling me to go burn
Todd Burch
14-Year Member
A good example would be a stoplight turning from red to green.
There’s the latency from when the light changes to when it shows up on the visualization. This would be relatively easy to measure from a video, but it would include the latency of the graphics rendering so not too useful a number without more details.
But the harder (nearly impossible) thing to measure by observing vehicle behavior would be latency from when the light turns green to when the car starts reacting to the green light.
That’s because a delay doesn’t mean the car hasn’t processed the green light yet. It may have, for example, learned from videos to wait a moment after a light changes to ensure the intersection’s clear.
Or the neural net might be indecisive about something. That’s not latency, that’s just two possible outcomes having similar probabilities in the neural net and on each compute cycle it wallows between those two solutions.
LSDTester#1
In large quantities Member
I was just coming on to say this. I’m stuck on Jun 4 after trying every trick in the book.
Funny, when I read you were going to go burn one, I thought what a great idea. So I did. When I was done, I realised you were talking about a software check. Then I couldn’t. Plus side, I feel so much better about the back dated frozen software check. Think I’ll go burn another and hit the rack
gottagofast
2022 Model 3 Performance
Idk if I’ll have time to download the update in the morning before work, last time I did this the update took like 1 hr by the time the install was finished
LSDTester#1
In large quantities Member
I get it. it'd require you to drive more than 5mph over the limit.
