Tesla has revealed some of its humanoid robot technology through filings for several new patents related to its Optimus robot program.
A few months ago, Tesla unveiled “Optimus Gen 2”, a new generation of its humanoid robot that should be able to take over repetitive tasks from humans.
The new prototype showed a lot of improvements compared to previously underwhelming versions of the robot, and it gave some credibility to the project.
One of the main changes with the Optimus Gen 2 is the fact that Tesla is now using all its own inhouse-designed custom actuators to power the robot’s limbs.
Now, Tesla has filed several patents related to the technology behind its humanoird robot.
In the first patent, Tesla describes its ‘actuator and actuator design methodology’:
A system or methodology of controlling movement of a robot (600) using actuators, the system can include one or more first type of actuators (1002) positioned at torso, shoulder, and hip locations of the robot; one or more second type of actuators (1004) positioned at wrist locations of the robot; one or more third type of actuators (1006) positioned at the wrist locations of the robot; one or more fourth type of actuators (1008) positioned at elbow and ankle locations of the robot; one or more fifth type of actuators (1010) positioned at the torso location and the hip locations of the robot; and one or more sixth type of actuators (1012) positioned at knee locations and the hip locations of the robot.
Here are some of the drawings from the patent application:
Interestingly, the first gen Optimus is featured in those drawings for the first patent application.
The other patent applications feature images of the new Optimus.
The next patent is called ‘Sytems and methods for a robot knee joint assembly’ and as the name suggest, it is specifically about the bot’s knee.
Tesla described the technology in its patent application:
Disclosed herein is a knee joint assembly including a first link member having a first end mechanically coupled to an upper leg of a robot and configured to rotate around a first pivot relative to the upper leg, and a second link member having a first end mechanically coupled to a lower leg of the robot. The lower leg can be mechanically coupled to the upper leg and configured to rotate around a second pivot relative to the upper leg. A linear actuator device can be mechanically coupled to a second end of the first link member and a second end of the second link member, and when actuated can cause the first link member to rotate around the first pivot relative to the upper leg of the robot and cause the leg to rotate around the second pivot relative to the upper leg.
Here are some of the drawings from the patent application:
The last patent application that we found is particularly interesting as it relates specifically to the Tesla Optimus hands.
The patent application is called ‘Underactuated hand with cable-driven fingers’.
Tesla wrote in the patent application:
A robotic hand system can comprise a palm region and one or more fingers, each finger comprising an actuator device; a proximal member having a first end mechanically coupled to the palm region robot and configured to rotate around a first pivot relative to the palm region; a distal member having a first end mechanically coupled to a second end of the proximal member and configured to rotate around a second pivot relative to the proximal member; and a cable having a first portion coupled to the actuator and a second portion extending along the proximal member and the distal member, the second portion separated away from the first pivot and the second pivot and having an end with a higher dimension than a diameter of the cable, the end with higher dimension structured to engage the distal member when the cable is pulled by the actuator.
Here are some of the drawings from the patent application:
In the latest sneak peek at the latest robot prototypes that Tesla showed, we could see much improved hand dexterity.
A new video surfacing from a Tesla demonstration in Miami this weekend shows the Optimus humanoid robot taking a nasty fall. But it’s not the fall itself that is raising eyebrows, it’s the specific hand movements the robot made on its way down, which strongly suggest it was mimicking a remote operator frantically removing a VR headset.
Humanoid robots are all the hype right now. Billions in investments are pouring in, and Elon Musk claims it will be a trillion-dollar product for Tesla, justifying its insane valuation.
The idea has been that with the advent of AI, robots in human form could use the new generalized artificial intelligence to replace humans in an increasingly larger number of tasks.
However, there are still many serious concerns about the effort, both at the ethical and technological levels.
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Technologically, most humanoid robot demonstrations have relied on remote control by human operators – pointing to a remaining gap between the software and hardware.
That was more than a year ago, and despite claims that Tesla has made “AI demos” of Optimus since, it appears the company still relies on teleoperation to control them during demonstrations.
The Tesla Optimus Miami Incident
This weekend, Tesla held an event called ‘Autonomy Visualized’ at its store in Miami. The goal was to showcase Tesla’s “Autopilot technology and Optimus.”
However, there was nothing “autonomous” at Tesla’s “autonomy” event.
Many Tesla fans were seen posting videos of a Tesla Optimus robot handing out bottles of water at the event. It was also seen posing for pictures and dancing.
On Reddit, someone posted a different video of the demonstration:
As you can see, Tesla Optimus moved its hands too quickly, causing some water bottles to drop to the ground. It then loses its balance and begins to fall backward.
But the most interesting part is that just before falling backward, both of its hands immediately shoot up to its “face” in a distinct grasping motion, as if pulling an object off its head.
The robot, of course, is not wearing anything on its head.
The motion is instantly recognizable to anyone who has used VR or watched teleoperation setups. It appears the human operator, likely located backstage or in a remote facility, removed their headset in the middle of operating the robot for unknown reasons.
Optimus faithfully replicated the motion of removing a non-existent headset as it crashed to the floor.
Here’s a look at how Tesla trained Pptimus with VR headsets in its lab:
Electrek’s Take
This is embarrassing, but not just because the robot fell. Robots fall; that’s part of the R&D process. Boston Dynamics blooper reels are legendary, and they never really eroded the company’s credibility.
The problem here is the “Wizard of Oz” moment.
The specific motion of removing the “phantom headset” destroys the illusion of autonomy Tesla tries so hard to curate.
Even recently, Musk fought back against the notion that Tesla relies on teleoperation for its Optimus demonstration. He specified that a new demo of Optimus doing kung-fu was “AI, not tele-operated”:
Musk said again during Tesla’s last earnings call in October:
“Optimus was at the Tron premiere doing kung fu, just up in the open, with Jared Leto. Nobody was controlling it. It was just doing kung fu with Jared Leto at the Tron Premier. You can see the videos online. The funny thing is, a lot of people walked past it thinking it was just a person.”
Musk keeps telling shareholders that Optimus will be the biggest product in history and that millions of units will be working in factories soon. But if they are still relying on 1:1 teleoperation to hand out water bottles right now, it feels like we are still far away from a useful generalized Optimus robot.
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After images of an the new mid-sized electric crossover were leaked by the Chinese MIIT, Nissan pulled the wraps off its all-new NX8 – and it looks so good, I’m wondering if it couldn’t spearhead the brand’s American turnaround.
Like its sedan siblings, the all-electric version of Nissan NX8 crossover rolls on an 800V system architecture and features a CATL-sourced LFP battery pack with 5C ultra-fast charging technology (xC is how many you can charge in an hour, effectively, so 60 minutes divided by 5 = it can charge in as little as 12 minutes). That battery reportedly sends power to a single electric motor putting out either 215 kW (~290 hp) or 250 kW (~335 hp), depending on model.
EREV version of the NX8, meanwhile, features a similar setup to the N6, pairing a 1.5L ICE producing 109 kW (~145 hp) with a 195 kW (~260 hp) electric motor. Expect the NX8 EREV to get slightly less than the N6’s claimed 112 miles of electric-only range (Chinese cycle).
The NX8 is expected to reach its first customers in April 2026. Take a look at some of the firs official photos of the new Nissan crossover, below, then let us know how you think this would do in the US in the comments section at the bottom of the page.
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This week, BYD crossed a major manufacturing milestone as its battery production crossed 113 GWh in the first three quarters of 2025 – but instead of celebrating, the company is doubling down with a new “Zero Defects” initiative to bring battery quality to an even higher level.
CarNewsChina reports that the new “Zero Defects” plan at BYD was launched internally at the start of Q3, with a focus on minimizing manufacturing defects across all stages of the battery’s life, from the manufacturing line to the end user.
The initiative coincides with BYD’s growing role as a battery supplier to other automakers and its expanding battery energy storage system (BESS) business, which are giving BYD both an international footprint and global benchmarks.
In its ongoing bid to prove itself even further in the global battery market, BYD will reportedly emphasize operational efficiency, error reduction, and standardization across manufacturing, process control, and customer service, with the end goal believed to be, “management practices comparable to those of Toyota.”
Note that BYD has not released official details regarding performance metrics or milestones for its new Zero Defects goal, but the message is clear: BYD plans to keep getting better.
SOURCE: CarNewsChina; images via BYD.
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