While most automakers are adding basic and un-integrated AI assistants to their vehicles, Tesla appears to be working hand-in-hand with xAI to build out an entire cast of characters for in-vehicle Grok. In the latest dive into Tesla’s firmware, Tesla hacker @greentheonly uncovered a few new details about the upcoming Grok feature.
This discovery, part of a larger batch of changes found in Tesla update 2025.20, also offers a hint at the hardware required for Grok.
A Dozen Groks
While we knew from previous firmware teardowns that Tesla was adding various Grok personalities to the vehicle UI, this update introduces a new one called Language Tutor, which may allow users to learn and practice a new language.
These are the different personas that will be included in Grok:
Argumentative
Assistant
Conspiracy
Doctor
Kids’ Stories
Kids’ Trivia Games
Meditation
Motivation
Romantic
Sexy
Storyteller
Therapist
Language Tutor
and the Grok Classic - Unhinged Mode
Release Date
Icons for these personalities have been added to the firmware for the first time, leading us to think Tesla is getting close to releasing the feature. However, even after the feature is developed and included in vehicle software, Tesla may only enable it selectively — such as for select employees for testing.
Grok is expected to be one of the largest vehicle features added via a software update, so it’ll be a big deal when it’s finally released. While we know more or less what to expect from Grok, what we don’t know is about vehicle requirements or whether it’ll require a subscription beyond Premium Connectivity.
Grok Requirements
While subscriptions required are anyone’s guess, vehicle requirements may be a little clearer now, thanks to Green’s discovery that Grok is only being added to AMD-based vehicle software builds.
Unfortunately, this likely means that older, Intel-based vehicles will not receive Grok support, at least for the time being. When Tesla introduced a voice assistant in China, they also started off with AMD-only support but later added Intel support, so it’s possible that the same could happen with Grok.
Energy Saving
Green also found a new undocumented navigation feature in 2025.20.3. This one focuses on leveraging Tesla’s vast amounts of data in an interesting way and offers drivers proactive advice to save energy on a well-traveled route.
In the Energy App, your vehicle will display, “This route is typically driven at X mph. Slow down by Y mph to save Z% for the rest of this trip.’
As you can see in the photo below, Tesla recognizes that vehicles typically drive at 66 mph on the route being driven and offers the driver the option to go five mph slower to save 1% of range. While this example doesn’t provide much incentive to slow down, it could be useful for someone with a low state of charge or if the savings are more significant.
In the future, Tesla could even use this, alongside the road surface data they’re gathering, to help plan routes for Robotaxi and Unsupervised FSD.
With the first Tesla Robotaxi rides starting shortly for early access users in Austin, Tesla has published a detailed set of rules for its first passengers.
They outline everything from who can ride to how you can behave in a car with no driver, and are designed to ensure safety. Tesla is using a safety monitor during the initial rollout phases, so the front passenger seat will not be available for customers.
Who Can Ride
Tesla has laid out clear guidelines on who is eligible to be a passenger, as well as some expected in-car conduct.
You must be at least 18 years old to book a ride and to ride alone. Riders are permitted to bring one guest, provided that the guest is also over the age of 18. You cannot book a ride for another person; the account holder must be present for the entire trip.
That’s all pretty straightforward, and we expect Tesla to relax some of the rules in the coming months. That means that once the safety monitor is gone, the number could increase to three or four.
How to Behave
All passengers must remain seated with their seatbelts fastened for the entire duration of the ride. There is a strict prohibition on smoking, vaping, or consuming alcohol or other drugs inside the vehicle.
Riders are also asked to be courteous and leave the Robotaxi in the same condition as they found it. Those who damage or dirty the vehicle may be charged an additional, currently unspecified fee after the ride.
Hands Off: Driverless Vehicle
This is where the rules get a bit more interesting, focusing on the unique fact that the Model Ys that Tesla is using still have driver controls.
Riders are prohibited from sitting in the front-left driver’s seat. Additionally, riders must not tamper with, modify, or attempt to physically manipulate any vehicle equipment, including the steering wheel and pedals.
Interestingly, Tesla also has a rule on reverse-engineering and intellectual property protection. While photos and videos of the experience are permitted, riders are prohibited from bringing onboard instruments or equipment intended to record, measure, or conduct surveillance on Robotaxi.
Service Animal Exception
For riders with disabilities, Tesla has outlined a specific policy. Only small service animals that are trained to work or perform tasks are permitted in the vehicle. No other pets are allowed.
However, riders are not required to provide proof; however, support may ask you to confirm that the animal is required due to a disability and what task it is trained to perform.
At this point, we’re not sure whether Tesla will allow non-service animals in its Robotaxi Network in the near future. It would make sense if they did - many people travel with their pets, or need to take them from one location to another - but for now, only service animals will be allowed.
Tesla is definitely taking a safety-first approach in the initial launch, and with the presence of the Safety Monitor, they’re being very cautious. There is a long way to go before the average person becomes comfortable with an autonomous vehicle with no one in the driver’s seat, and building public trust is a good first step.
After several sets of spy shots showing camouflaged prototypes, the new Model Y Performance has finally broken cover in the German Alps. The performance variant was finally spotted completely undisguised and driving on public roads.
The video, captured by Nextmove on YouTube, gives us a great look at some differentiating features of the Performance variant.
Performance Model Aerodynamics
The new video confirms that the Model Y Performance model will receive a unique and more aggressive aerodynamics package. Clearly visible in the video is a new rear diffuser on the lower bumper, which is much more pronounced than the one on the standard Model Y.
Also confirmed is the longer, carbon fiber spoiler on the liftgate. Tesla is sticking with the carbon fiber look for its Performance variants, and this one in particular appears to be longer than the one on the original Model Y Performance.
New Badge & Wheels
Carscoops
For the first time, on what is likely a production-intent vehicle, we can make out a blurry shot of what appears to be a performance badge on the right side of the trunk. While the exact details are hard to make out, it appears to be a new icon in orange or red, similar in design to the Model 3 Performance Ludicrous badging.
The vehicle is also sporting the same new Performance wheels that were previously seen on the prototype, making the rounds on the Nürburgring. These unique wheels appear to be exclusive to the Performance variant, and look like they’re the first staggered option for the new Model Y.
Launch Soon
The appearance of a fully uncovered vehicle driving on public roads is typically one of the final stages for Tesla before it launches a new vehicle. We saw this with the lightly refreshed Model S and Model X just recently. While the key visual differentiators are all but confirmed, we’re still waiting on the most important parts: the official 0-60 mph time and details on the updated dynamics. It’s clear Tesla has some engineering magic working behind the scenes, and we can't wait to see the final results.
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