The highlight of FSD Beta v12 lies in its increased usage of neural networks. A neural network in artificial intelligence is akin to the human brain's network of neurons. It is a complex system that learns from large datasets - in Tesla's case, millions of video clips - to recognize patterns and make informed decisions. This machine-learning approach allows the system to adapt and improve continuously.
Neural networks are already used for determining surroundings, detecting objects, and more, but FSD v12 will be the first time Tesla adds neural networks that control the vehicle's acceleration, braking, and steering. According to Musk, FSD Beta v12 features end-to-end neural networks, meaning that these AI networks are used for everything, from vehicle input (cameras) to vehicle output (steering).
Tesla will be able to replace more than 300,000 lines of explicit code with these new networks.
Release Notes
Release notes for FSD Beta v12 were never obtained, however, the release notes for v12.1 confirm the use of neural networks for vehicle control.
The release notes are short, but hopefully, Tesla will expand them to offer additional details before v12 goes out to customers. The release notes currently only include one feature that states:
“FSD Beta v12 upgrades the city-streets driving stack to a single end-to-end neural network trained on millions of video clips, replacing over 300k lines of explicit C++ code.”
FSD Beta v12 Livestream
The public got an early glimpse of FSD v12's potential back in August 2023, when Musk live-streamed his vehicle driving with an alpha version of v12 on X.
The livestream wasn't without its share of issues, but it showed off some of its capabilities of v12 and it appeared to be at least on par with FSD Beta v11, even at this early stage.
Release Timeline and Inclusion of Updates
While the exact timeline for FSD Beta v12's release to public testers remains unknown, the expansion to additional employees is a promising sign. FSD Beta v12.1 is currently Tesla update 2023.44.30.10, although we'll likely see additional releases before it goes out to public testers.
Back in June of 2023, Musk said that FSD would finally graduate out of beta with FSD v12, however, the release notes for v12.1 clearly state "FSD Beta v12.1." Musk's goal could be for FSD to come out of beta with an eventual v12 release, but at this time it looks like FSD will remain in beta - at least in its current state.
FSD Beta v12.1 Video
It looks like we're not the only ones excited about the release of FSD Beta v12.
A video of FSD Beta v12.1 has been published online by an apparent employee. You can watch the video below.
Keep in mind that with major changes to FSD Beta, there are often regressions as well, and it usually takes several revisions to iron out major issues.
FSD Beta v12 is a fundamental shift in how the vehicle is controlled and represents an exciting future for Tesla and its FSD ambitions.
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Last night, Tesla released software update 2024.45.25.15, which includes FSD V12.6.1. This update adds support for all HW3 vehicles, including the Model 3 and Model Y. We’re excited to see the continued support for HW3 owners.
FSD V12.6.1
V12.6.1 is now going wide, according to Ashok Elluswamy, Tesla’s VP of AI. This update is going to the Model 3 and Model Y for the first time - as only the Model S and Model X were included in FSD V12.6.
V12.6 is a big step forward for HW3 - it includes End-to-End on Highway, Improved City Streets Behavior, and Smoother and More Accurate Tracking - all contributing towards a better, smoother, and more comfortable build of FSD. You can read our comparison between FSD V12.6 and V13.2.2 here.
In short, FSD V12.6 performs considerably closer to V13 than V12.5.4.2 - which is a massive improvement. It performs as well as the Cybertruck version of FSD V13, which is still missing a few features when compared to other HW4 vehicles, but it’s a great sign for HW3. A lot of the improvements can be pointed to in the improvements to lane selection and decision-making - the vehicle tends to hesitate far less on V12.6, meaning the ride is a lot smoother. Many early V12.6 testers mentioned that it felt more like V13-mini than anything else.
Legacy Model S & X
We haven’t seen this update hit any legacy Model S and Model X vehicles just yet. We’re not sure whether Ashok’s statement of “generally” applies here - but it should. If you do get the update, please let us know.
Legacy Model S and Model X vehicles are still on an older FSD build and potentially won’t see another FSD update for a little while longer. While they do have the same FSD hardware as other vehicles, there are enough hardware differences that require a build specifically for these vehicles.
FSD V12.6.1 is going out now to the redesigned Model S and X with HW3 and all Model 3 and Model Y vehicles with HW3. The initial wave went out last night, and we expect to see more later today or tomorrow. If this release ends up going “wide,” we should see much larger waves go out next week.
Tesla has issued a recall for some vehicles due to issues linked to a revision of the Hardware 4 (HW4) computer that was introduced this past November. This recall affects all vehicles with the revised hardware except for the Cybertruck, as it uses a slightly modified version of the HW4 system.
Many vehicle owners have reported a complete failure of their Autopilot computer, which not only leaves the vehicle without FSD and Autopilot but also disables many of the active safety features that make a Tesla what it is.
Let’s take a look at this recall - because the recall is partially physical and partially a software recall.
HW4 Failure
Tesla has identified the failure and flagged it to the U.S. NHTSA (but not Transport Canada or Euro NCAP at the time of publishing) as a recall.
Tesla mentions that the vehicle’s FSD computer circuit board may short circuit, resulting in the loss of the rearview camera image. The recall itself is focused on the rearview camera - as not having a functional rearview camera breaks a Federal Motor Vehicle Safety Standard. However, it does impact more than just the rearview camera.
As previously mentioned, users have experienced the full loss of Autopilot and FSD on these vehicles, as well as reduced traction control and removal of safety features such as automatic emergency braking, collision avoidance assist, and forward collision warnings.
While the vehicle remains driveable, it is not necessarily a good idea to drive the vehicle with many of these features, especially with the reduced traction control noted by many people. We’ve already noted that while Tesla has been sending tow trucks to pick up some vehicles, it is also prompting owners to drive the vehicle to their service center in some cases.
Remedy
Unlike most of Tesla’s recalls, this one isn’t entirely an OTA recall, owing to the fact that people have already experienced circuit board shorts and are already waiting for replacements.
The software portion of the recall has already been mostly completed for any vehicles with Tesla software update 2024.45.25.3 or greater. However, a significant portion of the tracked fleet remains on update 2024.44.25.2 (approximately 20%), so we recommend updating your HW4 vehicle whenever you receive the notification.
On the hardware side, Tesla is immediately identifying and replacing hardware that has had circuit board failure. Tesla is also reaching out to customers who have expressed intermittent issues with Autopilot features, active safety features, or vehicle cameras that don't display correctly. If you have experienced any of these issues in a late 2024 vehicle, we recommend submitting a service ticket with Tesla to ensure that your vehicle isn’t affected by this recall.
