Tesla’s Optimus humanoid robot is back in the spotlight, and this time it's showing off some impressive new footwork. In a pair of videos shared on X this week, Optimus demonstrated a surprising level of agility and coordination while dancing. The first demonstration had a precautionary safety cable, but the second demo was impressive without support.
Tesla has been making some astounding advances in Optimus’ unique FSD model, particularly through simulation and reinforcement learning. Optimus has come a long way since tripping over its own feet.
This first glimpse showed Optimus performing a simple series of dance-like movements. While there was a safety cable visible, indicating the relatively early nature of the test, the fluidity of the movements was noteworthy. Check out those feet—maintaining balance on two legs may be easy for humans, but it’s much harder for a robot as it shifts its center of gravity.
Milan Kovac, a member of the Optimus AI team, provided some additional context on this initial video. He mentioned that more was coming shortly, and the team has been hard at work. What’s key here is that he emphasized that the routine was entirely trained in simulation with reinforcement learning. He also mentioned that there are many optimizations and fixes already put in place for the sim-to-real training code. Finally, regarding the cable, he mentioned it's there in case of a fall and that it is not actually holding Optimus up directly.
Dance Baby, Dance
True to Kovac’s promise, the Tesla Optimus X account followed up with a second, more impressive video, declaring that it was just “getting warmed up.”
This time, Optimus engaged in a far more dynamic EDM-style dance, and crucially, without a safety cable or restraint. Optimus put on a good show of its balance, quicker movements, and an even greater range of dynamic motion, all untethered.
Murtaza Dalal, another Optimus AI team member, commented on this cable-free performance, stating, "As promised, the team is crazy fast :)" He pointed to the core methodology enabling such rapid progress: "Sim2real RL is the key to getting next level agile, dynamic motions. It’s also the key to precision and robustness."
Sim-to-Real Learning
The recurring theme from the Optimus team is the power of sim-to-real transfer using reinforcement learning. This approach involves training the AI model extensively in a simulated virtual environment, where it can learn complex behaviors (like walking, balancing, and now dancing) through trial and error at an accelerated pace. The best part is that it can all be done without risking damage to the physical hardware and done across multiple nodes of Tesla hardware. Imagine thousands of Optimus bots learning to dance all at once - except virtually.
Once the AI masters these skills in the simulation, the challenge lies in transferring that learning effectively to the real-world robot - which is the sim-to-real step.
These latest dance demonstrations suggest Tesla is making some fairly substantial strides in bridging that gap, allowing Optimus to translate simulated learning into real-world physical competence.
Rapid Development
While dancing may seem like a novelty, it serves as a compelling visual demonstration of Optimus’ advanced capabilities in balance, coordination, and dynamic movement - all essential for performing useful tasks in real-world environments. This progress builds on previous milestones, like Optimus learning to walk.
The "crazy fast" development pace lauded by Dalal indicates that Tesla is treating Optimus with the same iterative intensity it applies to its vehicles and FSD software. Each new demonstration, from sorting objects to walking and now dancing, offers a glimpse into a future where humanoid robots could play an important role in manufacturing, logistics, and eventually daily life.
The ability to quickly iterate and improve in simulation and then successfully deploy those improvements to the physical robot is crucial. While Optimus might not be ready for household chores just yet, its new dance moves are a clear sign that FSD is learning and evolving at an impressive rate.
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A recent sighting at Giga Texas by drone operator and detail hound Joe Tegtmeyer has really caught our eye. A red Model Y was driving within the factory premises with its front and rear sections heavily camouflaged in Tesla’s standard black coverings. To top it off, there wasn’t just one, but two vehicles.
Tesla usually conceals vehicles when it has something to hide or test, and this timing suggests to us that a new variant of the world’s best-selling SUV is on its way. This leads us to two theories - a refreshed Model Y Performance or the anticipated, more affordable E41 Model Y.
Caught something interesting today … two heavily camouflaged cars driving on the W side of Giga Texas. Several viewers noted this in my short video on the autonomous drive.
— Joe Tegtmeyer 🚀 🤠🛸😎 (@JoeTegtmeyer) May 14, 2025
The front fascia, headlights, and hood are almost entirely obscured, with similar coverings applied to the rear, hiding the taillight design and bumper. This is a classic practice to keep new design elements under wraps before an official unveiling, and this is exactly what we saw with the Model 3 Highland and Model Y Juniper projects. The rest of the vehicle, including the central body and roofline, appear fairly consistent with the current Model Y.
Refreshed Model Y Performance?
One compelling possibility is that Tesla is preparing for the launch of the refreshed Model Y Performance. This speculation gains traction when we look at the launch of the refreshed Model 3 Performance. The Performance variant launched several months after the Long Range AWD and RWD variants and came with a bespoke front fascia. That fascia included air ducts for improved aerodynamics and brake cooling, helping to differentiate it both visually and by performance from other refreshed Model 3s.
It stands to reason that Tesla is preparing to launch the refreshed Model Y Performance. The extensive covering on the front fascia could be hiding a more aggressive, aerodynamically optimized bumper and air ducts to match the Model 3 Performance.
More Affordable Model Y?
Alternatively, this mystery vehicle could be the prototype of the previously discussed affordable variant of the Model Y, known as E41. Tesla has been working on further cost reductions for its highest volume vehicle, which includes cost-cutting components and features, as well as working on manufacturing efficiencies.
Tesla is focusing on making its existing models, like the Model Y, more affordable. In this case, the camouflage might be concealing simplified exterior features designed to help reduce production costs. This could include a revised front-end design, along with different headlights or taillight assemblies. Tesla could even forgo the distinctive front lightbar, as well as the afterburner-style rear lightbar, if it contributes to worthwhile savings.
This would be a step beyond the recently introduced Model Y Long Range RWD, which improves the vehicle’s range and lower the price by $4,000.
For now, the identity of this camouflaged Model Y remains a mystery. The fact that it is out and about at Giga Texas suggests that whatever changes Tesla has incorporated are significant enough to warrant covering up the front and rear of the vehicle.
Tesla’s FSD has made some truly incredible strides since V11, and since FSD V12.5, the experience has been hands-free for vehicles with a cabin camera.
However, a persistent point of frustration for many users is the strictness of the Driver Monitoring System (DMS), often referred to as the “nag.” In a recent interaction on X, Mike P detailed his grievances about how strict the DMS was.
This post drew a response from Elon Musk, who said, “You’re right.” Just a few days and a relatively unassuming point release later, Tesla has already decided to take action to improve its DMS.
The core issue here, which many who use FSD can attest to, isn’t about wanting to be irresponsible. Instead, it is about the current system’s sensitivity. The DMS can feel overly punitive for brief, normal interactions with the vehicle’s center display.
User Experience Woes
Mike P’s experience was common - you can’t even glance at the display to change the song or add a nav stop without the DMS warning you to pay attention.
If you continue, then you risk receiving a FSD strike. This leads to most drivers disabling FSD and typing their destination in while manually driving. For the casual observer, you can tell that it is clearly far more dangerous.
This highlights a safety paradox: a system designed to ensure attentiveness can sometimes lead to less safe workarounds. One must acknowledge that Tesla is in an odd position, being incredibly cautious about safety and ensuring it stays within NHTSA guidelines. However, the nag today is overkill in some situations, such as glancing at the center screen.
Tesla Confirms Change
Musk’s relatively concise answer resonated with his previous outlook on the matter. During Tesla’s Q1 2025 Earnings Call, he acknowledged that the DMS can be too strict and mentioned that Tesla is actively looking into ways to loosen those restrictions. He also pointed out the irony between the current system encouraging users to disengage FSD for simple tasks, only to re-engage it moments later - a less-than-safe cycle.
In a post on X, Ashok Elluswamy, Tesla’s VP of Autopilot AI, delivered welcome news. He confirmed that the latest FSD update, V13.2.9, includes a loosening of the cabin camera nag. This is an undocumented change, and one that we’re very excited to see.
This undocumented change is the latest step in Tesla’s overall plan forward Unsupervised FSD, which would drop the DMS completely. Previous updates, like the shift to vision-based driver attention monitoring in V12.4 and V12.5, aimed to balance safety with user experience.
What Does This Mean?
While the full extent of changes in V13.2.9 will become clearer as Software Update 2025.14.6 rolls out to more FSD users, the confirmation of loosened cabin camera nag suggests a few things.
This likely means greater tolerance for brief glances at the screen for essential tasks, whether it be adjusting climate settings, inputting a nav destination, or changing the current song. It could also include a potentially more forgiving threshold for looking away, especially in low-speed scenarios. The DMS does not ding you for using the display or looking away while the vehicle is waiting at a red light today, but Tesla could expand this to driving under 10 mph (16 km/h).
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