OpenAI CEO Sam Altman has become the latest tech billionaire to signal allegiance to Donald Trump by pledging to donate to the president-elect's inaugural fund.

Mr. Altman and OpenAI have recently hired key executives who previously worked for the Clinton, Obama and Biden administrations.

Trump has been a vocal critic of tech companies, and he signaled earlier this month that he won't shy away from antitrust enforcement. The incoming president nominated Gail Slater, who advised Trump on tech policy during his first term, to head the Department of Justice's antitrust arm.

According to media reports, Amazon, Meta, and OpenAI 's chief Sam Altman have all made donations to the fund in recent days. An inaugural fund is a fundraising effort that supports the inauguration of the new president as well as its related events.

Tech CEOs are scrambling to land on President-elect Trump's nice list ahead of his inauguration next month, with Meta, Amazon, Uber and OpenAI's Sam Altman each donating at least $1 million to the inaugural fund.

Dara Khosrowshahi's contribution represents his largest political donation ever and a promise to cooperate with the administration.