US Senator Bernie Sanders has urged the CEOs of leading AI companies to pause the development of artificial intelligence (AI), warning that he and other senators could step in if they fail to take action, Axios reported. In a letter sent to OpenAI CEO Sam Altman, Anthropic CEO Dario Amodei and Meta CEO Mark Zuckerberg, Sanders called on the companies to halt AI development over concerns about the technology's safety and potential risks. Pause AI development. Stop building machines that humans cannot control," Sanders wrote in the letter, which was shared with Axios. Axios reported that Sanders cited previous statements from the companies in which they said they would stop or pause AI development if the technology became "too risky to safely control."