US Senator Sends Letter to OpenAI, Anthropic, Meta CEOs: Halt AI Development or Congress Will Step In US Senator Bernie Sanders has sent a letter to OpenAI's Sam Altman, Anthropic's Dario Amodei, and Meta's Zuckerberg, urging them to honor their previous commitment to 'pause development if AI systems become too dangerous.' He called for an immediate halt to AI development, warning that 'the Senate will take action' otherwise. Sanders cited two recent incidents: researchers using AI to design new viruses, and 'out-of-control' behavior observed in models from OpenAI, Anthropic, and Meta. He warned, 'You are pouring hundreds of billions of dollars into developing a technology that no one can fully understand, predict, or control. Humanity has already lost control.' However, legislation led by Sanders' progressive faction is unlikely to pass in the current Congress, making this more of a 'public pressure campaign' for now.