The billionaire wrote on social media that the companies behind the project don’t have enough money to follow through on their pledges.

On Tuesday, OpenAI, SoftBank, Oracle, and MGX announced plans to form Stargate, a new company that will invest $500 billion in AI computing infrastructure across the United States over four years. The announcement came during a White House meeting with President Donald Trump, who called it the "largest AI infrastructure project in history."

Stargate — the joint venture between OpenAI, Softbank and Oracle — is starting its AI infrastructure plans with 10 data centers in Texas.