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 is already casting doubt on OpenAI’s new, up to $500 billion investment deal with SoftBank (SFTBY) and Oracle (ORCL), despite backing from his allies — including President Donald Trump.

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 represents a bold step toward reshaping America’s AI future. Despite criticism and scepticism from industry leaders like Elon Musk, proponents such as Sam Altman remain confident in its transformative potential.

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,

Elon Musk, a close Donald Trump advisor questioned the value of the investment. Sam Altman responded, saying Elon Musk was “wrong, as you surely know”.

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.

It all began with US President Donald Trump's announcement of a joint venture between OpenAI, SoftBank, and Oracle to create a $500 billion artificial intelligence initiative called Stargate. Musk claimed that the initiative did not have the amount they had announced.