US President Donald Trump has postponed signing an executive order tightening government oversight of artificial intelligence, arguing the proposed rules could undermine US competition with China, though media outlets cite pressure from tech moguls.

Reports about the proposed regulation first surfaced earlier this month in the New York Times, which said the Trump administration was mulling reviewing advanced AI models before public release.

The plan reportedly included a voluntary framework for developers to engage with US authorities before launching new systems, partly to prevent fallout from potential AI-driven cyberattacks, and give officials early access to models with possible Pentagon applications.

Asked about the order during a press event on Wednesday, Trump said he postponed the signing because parts of the proposal could slow American AI development and weaken its supposed lead over China.

"Because I didn't like certain aspects of it, I postponed it… We're leading China, we're leading everybody, and I don't want to do anything that's going to get in the way of that lead," he said.

Trump added that he feared the proposal could become "a blocker" for the rapidly growing AI industry, which he said was generating "tremendous" economic growth and jobs. He also said he had discussed AI safeguards with Chinese President Xi Jinping during his recent Beijing visit, arguing the US and China were leading the global AI race while other countries were "way behind."

US media outlets including Semafor and the Washington Post, however, claimed the plans were delayed after lobbying from xAI founder Elon Musk, Meta CEO Mark Zuckerberg, and former Trump AI adviser David Sacks, who reportedly feared the order could hurt profits by slowing AI rollouts or forcing changes to address security concerns. Musk later denied influencing Trump's decision.

"This is false," he wrote on X. "I still don't know what was in that [executive order] and the president only spoke to me after declining to sign."