From their website:
"Who are you?
We are a community of volunteers and local communities coordinated by a non-profit that aims to mitigate the risks of AI (including the risk of human extinction). We aim to convince our governments to step in and pause the development of superhuman AI. We do this by informing the public, talking to decision-makers, and organizing protests. We are not affiliated with any company or organization."
Pause AI is an AI advocacy organizing with the aim of pausing AGI research due to concerns about future risks from AI. From their website: