A gentleman's agreement between the western bloc, China, India, Russia, ... ?
It would be a lip service agreement, and all would continue the machine learning race...
The mere suggestion of slowing down AI progress signals to adversaries that there is some novel power just identified: do you think adversaries would agree and slow down, or calculate a little harder and longer in order to also figure out what it unlocks?
Do you ever wonder how Anthropic or OpenAI can release a new state of the art model and then a few months later there's a Chinese open model that's nearly as good?