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Elon Musk’s xAI activates “most powerful AI training cluster in the world” with 100k Nvidia H100 GPUs

Credit: xAI/X

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Elon Musk’s artificial intelligence startup, xAI, has activated its supercomputer cluster in Memphis, Tennessee, which is comprised of 100,000 Nvidia H100 GPUs. Tesla CEO Elon Musk confirmed the milestone in a post on social media platform X. 

xAI had a busy weekend, with the AI startup announcing a hiring ramp on X. Musk highlighted these efforts on Monday morning, stating that xAI was looking to increase its human talent advantage. Interestingly enough, Musk also encouraged those who are interested in AI to apply to Tesla and X. 

Musk then mentioned that a collaboration between teams from xAI, X, and Nvidia has enabled the Memphis Supercomputer cluster to start training at 4:20 a.m. local time. As per Musk, the supercomputer cluster features 100,000 Nvidia H100 GPUs, effectively making it the most powerful AI training cluster in the market today. 

“Nice work by xAI team, X team, Nvidia team, and supporting companies getting Memphis Supercluster training started at ~4:20 a.m. local time. With 100k liquid-cooled H100s on a single RDMA fabric, it’s the most powerful AI training cluster in the world! This is a significant advantage in training the world’s most powerful AI by every metric by December this year,” Musk wrote in a post on X. 

xAI’s supercomputer cluster is expected to be used to train the company’s large language model, Grok, which is currently rolled out as a feature for X Premium subscribers. Earlier this month, Musk noted in a post on X that xAI’s Grok 3 would be trained on 100,000 H100 GPUs so “it should be really something special.” 

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Previous reports from Memphis back in early June suggested that xAI would be building a supercomputer cluster informally dubbed the “Gigafactory of Compute” at the 785,000-square-foot former Electrolux Memphis facility. In a press release, the Greater Memphis Chamber stated that xAI’s supercomputer project represents the city’s largest capital investment by a new-to-market company in Memphis history. 

xAI’s investment is substantial. As per a Benzinga report, each Nvidia H100 GPU is estimated to cost between $30,000 to $40,000. Considering that xAI is using 100,000 Nvidia H100 units, Elon Musk’s AI startup appears to have spent about $3 billion to $4 billion for the project.

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 clarifies Trump tariff effect on Tesla: “The cost impact is not trivial”

The U.S. President has stated that Elon Musk stayed silent and provided no input in the administration’s tariffs.

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MINISTÉRIO DAS COMUNICAÇÕES, CC BY 2.0 , via Wikimedia Commons

U.S. President Donald Trump’s plan to implement a 25% tariff on non-U.S.-made vehicles starting next week would affect American electric car maker Tesla. 

This was confirmed by CEO Elon Musk in a recent post on social media platform X.

Musk and Trump

While Elon Musk works closely with the Trump administration due to his role in the Department of Government Efficiency (DOGE), the U.S. president has emphasized that the Tesla CEO never asks for favors. This was highlighted in his recent comments, when he stated that Elon Musk stayed silent and provided no input in the administration’s 25% auto tariffs.

When asked by reporters if the new tariffs would be good for Tesla, Trump noted that they may be “net neutral or they may be good.” The U.S. president also pointed to Tesla’s automotive plants in Fremont, California and Austin, Texas, which produce vehicles that are sold in the country. “Anybody that has plants in the United States — it’s going to be good for them,” Trump noted.

Tesla Affected

In a post on X, Elon Musk clarified that the Trump administration’s tariffs would affect the prices of vehicle parts that are sourced from other countries. This was a concern that Tesla previously outlined in a letter to the U.S. Trade Representative, which noted that even with “aggressive localization” of its supply chain, “certain parts and components are difficult or impossible to source within the United States.”

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As per Musk in his recent post on X, the cost impact of the Trump administration’s tariffs is no joke. “To be clear, this will affect the price of parts in Tesla cars that come from other countries. The cost impact is not trivial,” Musk wrote in his post.

Potential Effects

Reactions to Musk’s comments from users of the social media platform were varied, with some speculating that the Trump auto tariffs could result in Teslas becoming more expensive in the United States. Despite this, the potential increases in Tesla’s vehicle prices might not be as notable as other cars, particularly those that are produced outside the country.

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Hyundai’s $7.6B Georgia plant dodges Trump’s 25% Tariffs  

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(Credit: Hyundai USA)

Hyundai’s $7.6 billion Georgia plant dodged U.S. President Donald Trump’s recently announced tariffs on imported vehicles and auto parts.

The South Korean automaker’s Hyundai Motor Group Metaplant America (HMGMA) in Georgia celebrated its opening recently by announcing plans to expand the factory. Hyundai aims to boost production by two-thirds, increasing HMGMA’s capacity from 300,000 to 500,000 vehicles annually.

“This plant couldn’t come at a better time than now. Because definitely all the cars that we would produce here are going to be exempted from any tariffs,” said Hyundai Motor Company CEO Jose Munoz.

President Donald Trump recently announced 25% tariffs on auto imports at the White House. President Trump praised the HMGMA plan in Georgia, commenting it was a “clear demonstration that tariffs very strongly work.”

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According to the Associated Press, the Georgia expansion ties into $21 billion in U.S. investments. It includes a $5.8 billion steel mill in Louisiana, which will supply parts for Georgia and Alabama plants.

Hyundai aims to employ 8,500 workers at the Bryan County site. Battery partners are estimated to add 3,500 more jobs. The car company does not have worker estimates for HMGMA’s expansion plans.

Hyundai Motor Group Executive Chairman Euisun Chung said the legacy automaker came to Georgia “to stay, to invest and to grow.”

“Standing here today, I can say I have never been more confident about building the future of mobility with America, in America,” Chung said.

Hyundai started EV production in Georgia six months ago. As of this writing, over 1,200 workers run the massive plant. Hyundai’s Georgia factory builds two electric SUVs now. The IONIQ 5 is already in production. Hyundai will start producing the IONIQ 9 this spring. Hyundai plans to produce hybrids, too. Munoz predicted hybrids would eventually make up one-third of production.

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Tesla China’s first Megapack exports are headed for a big battery in Australia

The Tesla Megapack batteries are bound for Queensland’s Western Downs battery project.

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Credit: Tesla Asia/X

A few days ago, Tesla announced that the first Megapack battery units from its Shanghai “Megafactory” were being shipped to Australia.

As per recent reports, the massive grid-scale Tesla batteries are bound for Queensland’s Western Downs battery project.

The Shanghai Megafactory

The Shanghai Megafactory is Tesla’s first battery storage factory outside the United States. Built close to Gigafactory Shanghai, the Shanghai Megafactory is expected to supply Megapack batteries to both China and foreign markets.

The Megapack represents a huge portion of Tesla Energy’s deployments. With 3.9 MWh of energy, Tesla notes that each Megapack is enough to power 3,600 homes for an hour. The Shanghai Megafactory has a capacity to produce 10,000 Megapacks per year to start. 

Mike Snyder, vice president of Tesla, shared his optimism about the Shanghai Megafactory. “Megafactory gives us the ability to scale production and efficiency. We can lower logistics costs as well as product costs, and grow the business to new markets,” he stated.

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Australia Battery Projects

As noted in a report from Renew Economy, the first Megapack shipments from the Shanghai Megafactory will be installed in the second stage of the Western Downs battery project, which is being built by Neoen. The Western Downs battery project involves a 460 MWp solar farm coupled with a 540 MW/1,080 MWh big battery system.

Tesla has also been listed as the battery supplier for the upcoming Calala battery in Tamworth, New South Wales, which will involve 138 Megapack units. The Megapacks for the Calala battery will likely be imported from the Shanghai Megafactory as well.

Data from Rosetta Analytics suggests that Tesla is currently the dominant player in Australia’s energy storage segment, with the company holding over 30% of the market. Tesla has become a notable presence in Australia’s energy sector for years, especially following the company’s buildout of the Hornsdale “big battery,” which was initially comprised of Tesla Powerpacks, in 2017.

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