The AI industry’s longest-running personal feud is back.
The long-running rivalry between Elon Musk and OpenAI CEO Sam Altman is back in the spotlight after the pair exchanged personal attacks on X, with their latest clash touching on everything from AI models and space data centers to Apple's lawsuit against OpenAI.
The latest exchange began after Musk renewed his criticism of Altman on X, writing, "Scam Altman is super good at scamming" and adding that Altman "takes scamming to a whole new level." The comments came shortly after Apple filed a lawsuit alleging that OpenAI misappropriated trade secrets related to hardware development. OpenAI denies the allegations.
Altman fired back with a swipe at Musk's latest ambitions, replying: "Homeboy, you're the one selling public market investors on short-term space datacenters."
Musk responded with another personal attack and repeated allegations that Altman had taken control of OpenAI’s original nonprofit mission and benefited from Apple’s technology.
Later, Altman appeared to brush off the criticism while promoting OpenAI's newest model, writing: "There are a lot of benchmarks that suggest 5.6 Sol is the best model in the world right now, but the most reliable way to tell is that Elon is obsessed with me again."
Apple lawsuit adds fuel to the dispute
The renewed war of words comes just days after Apple sued OpenAI, alleging that the company obtained confidential information about unreleased hardware products through former Apple employees involved in its consumer AI device efforts.
OpenAI denied the allegations. In a statement on X, the company’s Director of Strategic Communications, Drew Pusateri, said, "We have no interest in other companies' trade secrets. We remain focused on building innovative technology that empowers people everywhere."
Musk seized on the lawsuit as another opportunity to criticize Altman, reviving accusations that OpenAI abandoned its original mission and accusing the company of broader misconduct.
Space data centers become a new battleground
Altman's remark about "short-term space datacenters" targeted one of SpaceX's most ambitious long-term projects.
SpaceX has discussed plans to eventually deploy AI data centers in orbit, and Musk said that advances in launch technology could make space-based computing infrastructure viable. Advocates of orbital computing say future constraints around land, electricity and cooling could make alternatives to Earth-based facilities more attractive.
Critics, however, question both the timeline and the economics of such projects. Analysts at MoffettNathanson recently said they have "real doubts" about the concept's cost-effectiveness and timeline, particularly because it depends on Starship dramatically reducing launch costs.
The exchange highlights how competition between AI companies is increasingly spilling into debates over the infrastructure needed to power future AI systems.
A rivalry years in the making
Musk and Altman helped launch OpenAI in 2015 before their relationship deteriorated over the company's direction and governance.
Musk left OpenAI in 2018 and later sued Altman and OpenAI, arguing the organization had strayed from its nonprofit mission by evolving into a commercial business. Earlier this year, a federal court rejected Musk’s claims after a jury found that he had filed them outside the legal deadline. The court did not decide the underlying allegations, and Musk said he planned to appeal.
The legal battle has done little to cool tensions, with both executives continuing to trade public insults as they lead competing AI efforts.
What this means for the AI industry
The latest exchange underscores how competition in AI now extends far beyond model performance. It increasingly influences investor sentiment, infrastructure strategies, and public perception of the industry's biggest players.
While the social media sparring attracts headlines, the more significant developments are unfolding elsewhere. Apple and OpenAI are preparing for a high-profile legal fight over hardware technology. Meanwhile, SpaceX has discussed plans to deploy computing infrastructure in orbit, although the technical and economic feasibility remains unproven.
For investors and businesses, those legal and technological milestones are likely to have a much greater impact than the online insults, even as the Musk-Altman rivalry continues to shape the narrative around the AI race.
Related News: Apple is suing OpenAI over alleged trade secret theft, escalating tensions as the two companies compete to build the next generation of AI hardware.