Strongly disagree that our current nuclear weapons situation "works". At this very moment a large number of hydrogen bombs sit atop missiles ready at a moments notice to kill hundreds of millions of people. Letting North Korea get atomic weapons required major civilization level incompetence.
I agree, it works in only limited sense, that is there is no nuclear war for 70 years, but proliferation and risks still exists and even grow.
From their site:
OpenAI is a non-profit artificial intelligence research company. Our goal is to advance digital intelligence in the way that is most likely to benefit humanity as a whole, unconstrained by a need to generate financial return.
The money quote is at the end, literally—$1B in committed funding from some of the usual suspects.