What's this about?
Simon Willison published a summary chart of the various dueling "open letters" about AI development that circulated in recent weeks — who signed what, and what each letter actually asks for.
What exactly are these "open letters"?
Public statements — typically calling for pausing, decelerating, or specific governance of frontier AI — signed by researchers, executives, and public figures. They've multiplied to the point of blurring together, which is exactly the confusion the summary addresses.
Why it matters
Comes as Sam Altman reportedly discusses deceleration with the White House — knowing which letter demands what is becoming table stakes for following the AI-policy debate.