Dario does a good job of addressing that in this essay. He lists several potential levels of global agreements that could be beneficial to all parties. For example, having models capable of bioterrorism hurts both the US and its “adversaries”. It’s likely we could get global agreement that these capabilities benefit nobody.
I believe Dario has good intentions regarding global agreements. However, I find it difficult believing government’s public statements will match their private behaviors. I would bet that the US government is developing models with potentially devastating capabilities because they cannot guarantee that other countries won’t do the same. Maybe we’ll end up having something like mutually assured destruction with AI models similar to what we have today with nuclear weapons.