The Chinese ecosystem is largely built on stealing intellectual property from and/or distilling of US closed source models.

I’m not getting into the ethics/comedy aspect of it, but let’s not pretend this isn’t the case. Plenty of evidence, the motive is obvious, and the numbers are in plain sight (valuations, salaries, etc).

As long as this continues I think closed source will continue being a few steps ahead, but the steps will probably get smaller over time.

Having said that, this is already priced in, the market predicts this gap will be large enough for the US companies to profit from (astronomically).