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Tesla Semi with Model X in tow is an “aircraft carrier”, teases Jerome Guillen
In a rather rare social media post, Jerome Guillen, Tesla’s President of Automotive, shared an image of a vehicle that truly lies close to his heart — the Tesla Semi. The Automotive President’s post features the all-electric long-hauler parked at a Supercharger while pulling a trailer loaded with a Tesla Model X. Jerome even cleverly captioned his image with the words “Aircraft Carrier?” — a fun reference to the electric SUV’s open Falcon Wing Doors.
The recently-shared picture of the Tesla Semi was taken at the Kettleman City Supercharger, a site located between San Francisco and Los Angeles. The location is one of the United States’ largest Superchargers with 40 charging stalls, solar panel-equipped roofs, and a comfortable lounge for travelers stopping over to charge their vehicles. The site is also the same Supercharger where the red Tesla Semi prototype was sighted a few weeks back.
Since becoming Tesla’s President of Automotive last September, Guillen’s uploads of the all-electric long-hauler have become rather elusive. That said, his recently uploaded Tesla Semi post was certainly worth the wait, since the image could very well be the first picture of the upcoming electric truck with a completely new cargo and trailer.
The Tesla Semi is expected to be a vehicle that can disrupt the trucking market in the same way that the Model S and Model 3 are disrupting the full-size and mid-size sedan segments. The vehicle incited a lot of raised eyebrows when it was initially announced by CEO Elon Musk, thanks to its impressive specs that include a 300 to 500-mile range, a 0-60 mph time of 5 seconds flat, and four Model 3-derived electric motors. So disruptive were the Semi’s specs that Daimler Trucks boss Martin Daum infamously suggested that the Tesla Semi must be breaking the laws of physics.
Despite these reservations from critics though, the development of the Semi continued. Elon Musk has noted that improvements to the Semi are actively being done, even suggesting that the long-range variant of the all-electric truck could have closer to 600 miles of range per charge. Just recently, even the Daimler Trucks CEO, who dismissed the Semi in the past, acknowledged Tesla and the company’s tenacity. Daum still gave Tesla some warning about the lucrative and competitive trucking segment, though, stating that the business is far trickier than the consumer vehicle market.
“Tesla has proved they really have the tenacity to really go through huge losses to capture the market. But trucking is a difficult business. They will learn the hard way; trucking is not like passenger cars where one size fits all,” he said.
Inasmuch as Daum’s warnings are justified, the Tesla Semi is being developed with steady, experienced hands. Jerome Guillen, after all, has extensive experience in the trucking industry, and prior to his promotion as President of Automotive, he was personally heading the Semi program. Before to his employment at Tesla, Jerome served as the project leader for Daimler’s Freightliner Cascadia program as well, where he eventually became the head of the company’s Business Innovation unit. By the time he left for the electric car maker, Daimler’s Business Innovation unit was profitable and self-funding.
During the vehicle’s unveiling, Elon Musk noted that initial production of the vehicle will commence in 2019. That said, Eric Markowitz & Dan Crowley of Worm Capital stated in a note published after a tour of Gigafactory 1 that the electric car maker is planning on “earnestly” producing the Semi by 2020.
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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
