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.

On Tuesday, Japanese tech investor SoftBank Group joined U.S. peers OpenAI and Oracle to unfurl the massive spending initiative, dubbed the "Stargate" project. The plan is to initially commit $100 billion then increase spending to $500 billion over the next four years.

Tesla Inc. CEO Elon Musk cast doubt Wednesday on the ambitious $500 billion Project Stargate, hours after its announcement, claiming lead investor SoftBank Group SFTBY -0.36% + Free Alerts SFTBF + Free Alerts has “well under $10B secured.”

Mr. Trump had claimed the A.I. announcement as an early trophy, taking credit for the companies’ decision to spend up to $500 billion building data centers.

The project backed by Oracle, OpenAI, and SoftBank was announced by President Donald Trump Jan. 21, but it's not without its detractors.

They don’t actually have the money,” Elon Musk wrote on his social media platform, exposing an early internal rift within the White House.

The Stargate project has big implications for U.S. AI leadership, but also for who's winning the new president's ear.

Elon Musk has expressed doubts about the financial feasibility of the $500 billion Stargate AI Project announced by President Donald Trump. The project, led by OpenAI and SoftBank, aims to build AI infrastructure across the US,

Stargate is supposed to spend $500 billion on AI infrastructure, President Trump said. But Elon Musk suggested that the venture has much less cash.

Elon Musk doesn’t miss an opportunity to take a dig at OpenAI — even when the news item in question is supposed to be favorable to President Trump. Just a few hours after yesterday’s White House presser on The Stargate Project wrapped up, Musk posted on X that “they don’t actually have the money.”

Elon Musk has cast doubt on if there is enough funding to follow through on a massive $500 billion artificial intelligence infrastructure project announced by Trump on Tuesday.