Now they are firmly on the map, which presumably helps with hiring, doing deals, influence. If they stop publishing something, they run the risk of being labelled a one-hit wonder who got lucky.
If they have a reason to believe they can do even better in the near future, releasing current tech might make sense.
I think those are valid points but it's hard for me to see that this is worth it. With the might of the CCP in the back and the giant labor pool that is China, surely they can make hiring work either way. If they now start offering a model that's cheaper and better then anyone else's, surely anyone will take notice, even if the weights are not open.
Now they are firmly on the map, which presumably helps with hiring, doing deals, influence. If they stop publishing something, they run the risk of being labelled a one-hit wonder who got lucky.
If they have a reason to believe they can do even better in the near future, releasing current tech might make sense.