OpenAI CEO Sam Altman suggested Elon Musk cares more about his businesses than the country, shortly after he referred to Musk as “the most inspiring entrepreneur of our time.”

Following the announcement of a new $500 billion artificial intelligence infrastructure project involving OpenAI, Oracle and SoftBank, Musk cast doubt about the project’s ability to deliver on its promises, arguing that the cohort of companies did not actually have the money to complete the project. The project, called Stargate, will see the trio of companies join forces to build data centers in the US for the further development of AI, which holds the promise of increasing productivity by automating work.

According to Musk, he has it “on good authority” that the new project has no funds, he said in a post on X, in response to a separate post by Altman’s OpenAI promoting the new project. “SoftBank has well under $10 million secured. I have that on good authority.”

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Altman responded to Musk’s claim, insisting he was “wrong.”

OpenAI CFO Sarah Friar defends the company’s position that it has the financial backing to fund the Stargate AI project. (Muhammed Selim Korkutata/Anadolu via Getty Images/Getty Images)

“Wrong, as you probably know,” Altman wrote of Musk’s claim that OpenAI didn’t have the money to fund Stargate. “Want to come visit the first site that’s already up and running?” Musk asked him.

“I realize that what’s great for the country isn’t always what’s best for your companies, but in your new role I hope you’ll primarily put (America) first,” Altman added.

Altman’s jab at Musk prompted the tech entrepreneur-turned-presidential adviser to post a barrage of criticism aimed at Altman, calling him a “liar” and suggesting the OpenAI CEO was greedy and anti-Trump, all and that he recently said his perspective on the president had changed and that he was excited to see what Trump would do for the country.

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Musk shared posts criticizing Altman’s ties to the LinkedIn co-founder Reid Hoffman, a Trump critic who helped fund the sexual assault lawsuit of E. Jean Carroll against the president before his election victory in November. Another post Musk shared claimed that Altman’s OpenAI was giving money to the news outlet Axios, which the post accused of being anti-Trump. Musk also highlighted a post Altman made in 2016 that said, after Trump’s first election win in 2016, he was back “working on a new project to stop Trump.”

Elon Musk, left, previously helped launch OpenAI, of which Sam Altman is now CEO, but no longer has any connection to the company. (Getty Images/Getty Images)

In addition to trying to paint Altman as anti-Trump, Musk also made criticisms of OpenAI, which Musk helped found but is not currently involved with. Last year, Musk sued OpenAI twice, alleging that Altman and the company violated a contract they signed agreeing that the company would have a primary goal of benefiting the general public, not making money.

“Altman literally stated to Congress that he would not receive compensation for OpenAI and now he wants $10 billion!” Musk posted on X, alongside an image of a Reuters headline about Altman getting a stake in OpenAI after it went from a nonprofit to a private company. “What a liar.”

Another post shared by Musk included an image of a meth pipe with the caption: “Leaked image of the research tool OpenAI used to find its $500 billion number for Stargate.”

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OpenAI CEO Sam Altman, accompanied by President Donald Trump, speaks during a news conference in the Roosevelt Room of the White House in Washington, DC, on Tuesday. (Getty Images)

In response to the war of words between Musk and Altman, artificial intelligence policy researcher Tolga Bilge questioned Altman’s criticism of Musk, writing to X, “What is his true mask?”

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“Both are true!” Altman replied. “I don’t think he’s a nice person or treats us fairly, but you have to respect the guy, and he pushes us all to be more ambitious.”

Fox News Digital reached out to OpenAI and Musk for comment, but did not hear back by the time of publication.