Data and GPU compute capacity.

Chinese labs do not release "open weight" models because they think it is good for humanity. They do it because they are severely GPU compute constrained due to the Nvidia and ASML embargos. All available GPUs have to go toward training which leaves very little capacity to host inference at scale. So they release the models and encourage EU and USA 3rd parties to host them.

China will inevitably produce their own AI chips and then they will lock down their models just the same as everyone else.

The real loser in all this is obviously Europe, which has nothing competitive once the Chinese models are gone.