I think one should attribute a good amount of credit of this to Yann LeCun (head of meta's research). From early stage he have been vocal about keeping things open-source, and voiced that to Mark before even joining. (and credit to Mark for keeping that).
It probably also stems from his experience working at Bell Labs, and how his pioneering work very much required a lot of help from things available openly, as is still the case in academia.
The man have been repeating the advantage of open-source being the better option, and been very vocal about his opposition to "regulate AI (read: let a handful of US government aligned closed-source companies have complete monopoly on AI under the guise of ethics)". On this point he (and meta) stands in a pretty stark contrast to a lot of big-tech AI mainstream voices.
Me myself recently moved some research tech stack to meta stuff, and unlike platform that basically stops being supported as soon as the main contributor finishes his PhD, it have been great to work on it (and they're usually open to feedback and fixes/PR).
It probably also stems from his experience working at Bell Labs, and how his pioneering work very much required a lot of help from things available openly, as is still the case in academia.
The man have been repeating the advantage of open-source being the better option, and been very vocal about his opposition to "regulate AI (read: let a handful of US government aligned closed-source companies have complete monopoly on AI under the guise of ethics)". On this point he (and meta) stands in a pretty stark contrast to a lot of big-tech AI mainstream voices.
Me myself recently moved some research tech stack to meta stuff, and unlike platform that basically stops being supported as soon as the main contributor finishes his PhD, it have been great to work on it (and they're usually open to feedback and fixes/PR).