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Tesla Semi Megacharger mobile unit briefly shows up in Utah

Credit: @camthehombre/X

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A Tesla Semi Megacharger mobile charging unit has briefly shown up at the Tooele, Utah Supercharger. Images of the mobile Tesla Semi Megacharger made the rounds on social media before the charging unit was reportedly removed from the site. 

The Tesla Semi is equipped with a very large 1000-volt battery. In the company’s Master Plan, Part Three, Tesla included a table that outlined its present and future vehicles. These included the Semi, which was listed with a 500 kWh LFP battery for its “Light” variant and an 800 kWh high-nickel battery for its “Heavy” variant. It remains to be seen if Tesla is already rolling out these battery sizes for the Semi’s current iteration. 

Considering that the Semi has a very large battery pack, the Class 8 all-electric truck is charged with its own dedicated Megacharger, which includes a different and much larger plug than the company’s regular Superchargers, which use the North American Charging Standard (NACS). 

This was confirmed as much in the Megacharger sighting in the Tooele, Utah Supercharger, as the mobile charging unit featured a much larger non-NACS plug. The Megachager mobile unit also looked like it was built similarly to the prefabricated Superchargers that are produced at Giga New York. Strangely enough, the whole charging unit was reportedly gone from the site when members of the Tesla Owners Club Utah decided to visit the Tooele Supercharger. 

While Tesla has not provided any context behind the sudden appearance and disappearance of its Tesla Semi mobile Megacharger at Tooele, the location is roughly 490 miles away from Giga Nevada. As such, the mobile Megacharger unit might have been set up at the Tooele Supercharger as part of long range road tests for the Class 8 all-electric truck. 

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Overall, the brief presence of the mobile Megacharger is quite exciting, as it hints that Tesla is looking at solutions that could quickly build out a dedicated charging infrastructure for the Semi across the United States. And that, ultimately, is one of the ways that Tesla could make the Semi into a legitimate competitor in the long haul trucking industry. 

Don’t hesitate to contact us with news tips. Just send a message to simon@teslarati.com to give us a heads up.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Elon Musk

Elon Musk reiterates shocking xAI detail, and hints at an upcoming monster

He also announced that xAI’s upcoming model, Grok 5, will begin training very soon.

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MINISTÉRIO DAS COMUNICAÇÕES, CC BY 2.0 , via Wikimedia Commons

Elon Musk has reiterated a rather shocking tidbit about xAI’s impressive scores at the ARC-AGI benchmark.

He also announced that xAI’s upcoming model, Grok 5, will begin training very soon.

xAI results on the ARC-AGI benchmark

In a recent post on social media platform X, Greg Kamradt, President of the ARC Prize Foundation, noted that Grok 4 has been used in two SOTA submissions to the ARC-AGI V1 and V2 benchmarks. The submissions, which were the best that the foundation has encountered to date, were done using xAI’s large language model, Grok 4. 

As per Kamradt, when asked about why the submissions were done using Grok 4, the authors stated that “It was the best model I used in testing.” Musk was evidently proud of this accomplishment, though he also highlighted that these accomplishments were attained with just Grok 4. This suggests that once Grok 5 is in the picture, xAI’s lead in the AI sector could become notable.

Grok 5 incoming

Elon Musk has shared a number of tidbits about Grok 5 as of late. In recent comments on X, the Tesla and SpaceX CEO stated that he believes Grok 5 has the potential to actually reach artificial general intelligence (AGI). This suggests that Grok 5 would be nothing short of a monster, as it could be capable of matching or surpassing human-level intelligence across tasks such as thinking, reasoning, and other domains by a substantial margin.

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Grok 5 may also be coming soon. As per Musk in another post on X, xAI will be starting the training of Grok 5 in a few weeks. Musk definitely seems to be highly optimistic about the capabilities of Grok 5, with the CEO stating late last month that the update would be coming before the end of the year and that it will be “crushingly good.”

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SpaceX is partnering with chipmakers to enable Starlink satellite-to-cell service

President Gwynne Shotwell outlined the effort during a space industry conference in Paris.

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Credit: SpaceX/X

SpaceX is working with microchip manufacturers to integrate satellite-connectivity hardware into smartphones, advancing its plan for direct-to-device services through Starlink. 

The move follows the company’s $17 billion acquisition of wireless spectrum from EchoStar Corp., a deal that positions SpaceX to operate more independently of traditional telecom carriers. 

President Gwynne Shotwell outlined the effort during a space industry conference in Paris this week, as noted in a Bloomberg News report.

Starlink direct-to-device

Starlink currently serves millions of customers in over 100 countries, primarily through ground-based dishes. The company, however, is now expanding into satellite-to-cell service, which should enable unmodified phones to connect directly with orbiting satellites. While SpaceX has a partnership with T-Mobile US, the EchoStar spectrum purchase gives it more control to negotiate with global carriers on its own terms.

“We’re working with chip manufacturers to get the proper chips in phones,” the SpaceX President stated. “We will now be initiating discussions with telcos in a different way now. Now it’s our spectrum, but we want to work with them, almost providing capacity and wholesaling capacity to their customers.”

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The company plans to launch satellites capable of supporting its direct-to-device business within two years, with early mobile phone testing expected by late 2026.

Starship program continues test flights

Shotwell also addressed SpaceX’s Starship program, which recently completed its 10th test flight in August. She said the mission met all objectives, providing a critical morale boost to teams after a challenging development year. 

“My Starship team needed that win,” Shotwell noted. “Development programs always are kind of a 24/7 operation, and I was really pleased for them.”

SpaceX is planning to fly one more iteration of the current Starship prototype, known as V2, before transitioning to the next-generation V3 vehicle. That version, expected to debut late this year or early 2026, is designed to be more capable and support eventual crewed missions to the Moon and Mars. 

“The V3, which we want to fly hopefully late this year, but maybe early next year, is really the vehicle that could take humans to the moon and Mars,” Shotwell stated.

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Elon Musk

Elon Musk says xAI has a chance to reach AGI with Grok 5

The comment came after Grok 4 posted strong results on the ARC-AGI benchmark.

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(Credit: xAI)

Elon Musk suggested this week that his artificial intelligence startup xAI has the potential to reach artificial general intelligence (AGI) with the next version of its large language model, Grok 5. 

The comment came after Grok 4 posted strong results on the ARC-AGI benchmark, which tests reasoning and problem-solving ability.

Musk sees Grok 5 as AGI candidate

In a post on X, user @amXFreeze shared the latest results of the ARC-AGI leaderboard, which showed Grok 4 outpacing rival systems such as OpenAI’s ChatGPT in problem-solving and open program synthesis tasks. 

Musk reacted to the performance by stating that “I now think xAI has a chance of reaching AGI with Grok 5. Never thought that before.” 

Artificial General Intelligence (AGI) refers to an AI system that is capable of matching or surpassing human-level intelligence across tasks such as thinking, reasoning, and other domains by a notable margin, as noted in a report from Benzinga. AI companies today are actively pursuing AGI.

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xAI’s speed 

While xAI was only established in March 2023, the startup has grown aggressively. Since its founding, it has rapidly risen in the AI segment and its Grok large language model has become a mainstream option for everyday users, especially on social media platform X. The company is still growing aggressively, and it is currently expanding its Colossus supercomputer cluster in Memphis. 

During xAI’s Engineering Open House event in San Francisco in its early days, Elon Musk highlighted that speed would be the company’s primary competitive edge. To highlight this, Musk stated that “No SR-71 Blackbird was ever shot down and it only had one strategy: to accelerate.” So far, xAI is definitely playing this role very well. 

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