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Tesla Semi prototype’s multiple camera setup highlighted in new video
Tesla expects to start production of the electric Semi truck sometime in 2019, but the company is already getting busy doing some real-world tests using a hand-built prototype version of the vehicle. The Tesla Semi prototype has been spotted in multiple states recently, and when it stopped by CO, it was filmed extensively by Tesla enthusiasts.
The Semi was initially sighted as it was charging at the Brush, CO Supercharger. During its stop, Model 3 owner and recording engineer Erik J. Martin was able to ask questions to the team of engineers who were accompanying the truck as it traveled across the United States. Among the most notable aspects of the vehicle that were related to Martin were its 300-mile range, its lack of a sleeper cabin, its carbon fiber body, and its unique 26-camera system.
These cameras were filmed by Tesla owner-enthusiast Sean Mitchell, who was able to take a very close look at the electric long-hauler while it was parked at the company’s facility in Denver, CO. Mitchell’s video revealed the unique placement of some of the vehicle’s cameras, including those that were installed at the truck’s side mirrors, as well as an array of at least six cameras that were mounted at the back of the truck. The vehicle also featured Tesla’s trademark three-camera array at the front, which would likely be utilized for the vehicle’s semi-autonomous functions.
Tesla is sparing no expense with the Semi, and the vehicle is designed to be one of the most technologically advanced trucks on the road. Since it’s planned for a 2019 release, Tesla is likely ensuring that the vehicle is future-proof as well, which could explain why the company opted to install a very generous number of cameras in the prototype. Cameras would play a significant role in Tesla’s vision for the Semi, particularly since the vehicle was unveiled with a side-mirror-less design. “Convoy Mode,” a key feature that allows the trucks to semi-autonomously draft in close proximity with each other, would likely utilize input from multiple cameras as well.
In a follow-up video on his YouTube channel about his encounter with the vehicle, Erik J. Martin noted that he was informed that the Semi’s production version would likely have fewer cameras. This would be a sensible decision on Tesla’s part, especially since some of the cameras currently in the prototype appear to be redundancies for other cameras on the vehicle.
Tesla is now on full throttle in terms of testing the Semi on actual roads, and the prototype, which has been going around the United States for months now, has likely gathered a healthy amount of mileage. This could be seen when the long-hauler was filmed in Denver, CO, as signs of wear from thousands of miles worth of traveling were evident in the vehicle. These battle scars from the road make the Semi even more impressive, as it shows that Tesla is ensuring that the electric truck will be ready for deployment when it reaches the market.
Elon Musk announced last November that the Semi would enter production sometime in 2019. Such a timeline is hyper-aggressive, and is classic Elon Musk. That said, the fact that the Semi shares several components with the Model 3 such as its electric motors, door handles, air vents, and 15″ touchscreens would likely make the vehicle a little less troublesome to produce at scale than the midsize electric sedan. Thus, even if the Semi’s actual production ends up starting in “Elon time,” there is a good chance that the electric truck’s deliveries would not see the delays that plagued the company’s previous vehicles like the Model X and the Model 3.
Watch Sean Mitchell’s extensive look at the Tesla Semi in the video below.
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Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.
Elon Musk
Tesla Giga Texas to feature massive Optimus V4 production line
This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.
Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.
Optimus 4 production
In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas.
This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4.
“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated.
How big Optimus could become
During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world.
“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP.
“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated.
Elon Musk
Rumored SpaceX-xAI merger gets apparent confirmation from Elon Musk
The comment follows reports that the rocket maker is weighing a transaction that could further consolidate Musk’s space and AI ventures.
Elon Musk appeared to confirm reports that SpaceX is exploring a potential merger with artificial intelligence startup xAI by responding positively to a post about the reported transaction on X.
Musk’s comment follows reports that the rocket maker is weighing a transaction that could further consolidate his space and AI ventures.
SpaceX xAI merger
As per a recent Reuters report, SpaceX has held discussions about merging with xAI, with the proposed structure potentially involving an exchange of xAI shares for SpaceX stock. The value, structure, and timing of any deal have not been finalized, and no agreement has been signed.
Musk appeared to acknowledge the report in a brief reply on X, responding “Yeah” to a post that described SpaceX as a future “Dyson Swarm company.” The comment references a Dyson Swarm, a sci-fi megastructure concept that consists of a massive network of satellites or structures that orbit a celestial body to harness its energy.
Reuters noted that two entities were formed in Nevada on January 21 to facilitate a potential transaction for the possible SpaceX-xAI merger. The discussions remain ongoing, and a transaction is not yet guaranteed, however.
AI and space infrastructure
A potential merger with xAI would align with Musk’s stated strategy of integrating artificial intelligence development with space-based systems. Musk has previously said that space-based infrastructure could support large-scale computing by leveraging continuous solar energy, an approach he has framed as economically scalable over time.
xAI already has operational ties to Musk’s other companies. The startup develops Grok, a large language model that holds a U.S. Department of Defense contract valued at up to $200 million. AI also plays a central role in SpaceX’s Starlink and Starshield satellite programs, which rely on automation and machine learning for network management and national security applications.
Musk has previously consolidated his businesses through share-based transactions, including Tesla’s acquisition of SolarCity in 2016 and xAI’s acquisition of X last year. Bloomberg has also claimed that Musk is considering a merger between SpaceX and Tesla in the future.
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
Tesla Giga Texas to feature massive Optimus V4 production line
