> There could have been a world where just Google builds that multipler and only uses it internally.
Funny that you mention that, actually. Before OpenAI started generously... publicizing their models, Google was actually shipping their weights day-and-date with their papers. So honestly, I actually doubt that Google would do that.
> Making that multiplier publicly available can be the "Open" part.
Aw, how generous of them. They even let us pay money to generously use their "Open" resource.
> but why are we being so childish about it?
Why are you being so childish about it? "Open" means something - you can't contort OpenAI's minimalist public contributions into a defense of their "openness". You'd have better luck arguing that Apple and Microsoft support Open Source software ddevelopment.
The last significant contribution OpenAI open-sourced was GPT-2 in 2019. They are a net-negative impact on the world at-large, amassing private assets under the guise of public enrichment. If it was an option between OpenAI or nothing, I'd ask for nothing and pray for a better frontrunner. It's not the name, it's the way they behave and the apologism they garner.