Elon Musk and OpenAI CEO Sam Altman are fighting on X about Stargate, the infrastructure project to build data centers for OpenAI in the U.S.

Elon Musk asked a judge to block OpenAI's attempt to transition from nonprofit to for-profit. It's not the first time he's feuded with CEO Sam Altman.

OpenAI, Oracle, SoftBank, and MGX are the lead partners in Stargate, according to OpenAI.

Musk’s criticisms have escalated into legal actions. In February, he filed a lawsuit against OpenAI, accusing it of breaching its nonprofit mandate. Although the lawsuit was withdrawn in June, Musk refiled it in August, further intensifying the conflict.

OpenAI CEO Sam Altman, Oracle founder Larry Ellison and SoftBank CEO Masayoshi Son comment on President Trump’s Stargate AI investment project in an interview with FOX News anchor Bret Baier on ‘Special Report.

It’s the latest clash in a feud between the two tech billionaires that started on OpenAI’s board and is now testing Musk’s influence with the new president.

The Stargate project, led by OpenAI's Sam Altman - to build the "world's largest AI infrastructure" - was announced by Donald Trump at a special press conference at the White House. Elon Musk, however,

The public spat underscored some of the tensions that could dominate Trump’s second term in office and echo issues he faced during his last stint at the White House.

The disagreement centres around claims made by Musk that the funds promised for the project might not be available as expected.

Fortune reported that this announcement has put Sam Altman in the spotlight, much to the frustration of his former collaborator, Elon Musk. Musk, who has long been a major backer of Trump, was once close with Altman when they co-founded OpenAI in 2015. However, their relationship has soured over time, evolving into a fierce rivalry.