More than a thousand of the people building the most powerful AI want a way to slow it down. On Tuesday, 1,134 employees of the leading AI companies signed a letter asking the US government to help build one.

The statement is titled Pacing the Frontier. It asks Washington to “support an international effort to develop the technical and governance tools needed to deliberately pace the frontier of automated AI development.” Bloomberg first reported the letter was circulating.

The names are the story. Signatories include Anthropic chief executive Dario Amodei and its co-founders Jared Kaplan and Jack Clark. So did OpenAI chief scientist Jakub Pachocki, Meta chief scientist Shengjia Zhao, and Google’s head of AI safety, Anca Dragan. Both Anthropic and OpenAI endorsed the letter officially.

What it actually asks for

It is not a call to stop. The letter does not ask anyone to pause or slow AI now, NBC News noted. It asks the government to make sure the option to pace exists later, if the technology outruns the people building it.