Earlier quoted context omitted.
Dont make the mistake of anthropomorphizing Mark Zuckerberg. He didnt open source anything because he's a "good guy", he's just commoditizing the complement. The "good guy" is a competitive environment that would render Meta's AI offerings to be irrelevant right now if it didnt open source.
The price tag on this stuff, in human capital, data, and hardware, is high enough to preclude that sort of “perfect competition” environment. Don’t let the perfect be the enemy of the good.
I feel like we right now live in that perfect competition environment though. Inference is mostly commoditized, and it’s a race to the bottom for price and latency. I don’t think any of the big providers are making super-normal profit, and are probably discounting inference for access to data/users.