OpenAI chief executive Sam Altman on Sunday voiced support for the concept of "pacing" artificial intelligence research and development, ensuring that the capabilities of the most advanced models do not advance faster than humanity's ability to maintain control. Altman echoed recent remarks by Anthropic CEO Dario Amodei, noting that reallocating more resources and research focus toward safety carries costs, but it is worthwhile to sustain confidence that American companies are responsibly developing increasingly powerful AI.

Posting on X, Altman said, "Whatever the competitive pressures the U.S. faces, they are not an excuse for reckless actions, nor should capability growth outpace safety alignment and oversight mechanisms." He also stressed that pacing does not mean halting technological progress. "When we talk about 'pacing,' we are not talking about 'stopping development,'" he wrote.

On Monday, AI-linked shares across Asia broadly declined. SoftBank Group, a major investor in OpenAI, tumbled 13% on the Tokyo Stock Exchange, while Samsung Electronics and SK Hynix in Seoul each fell more than 4%. In his Sunday post, Altman reiterated OpenAI's support for establishing a federal-level regulatory framework for artificial intelligence, amid widespread concern that U.S. AI firms could unilaterally slow their development pace.