> Do you think China is going to allow the strongest LLMs from companies within its borders to be open source a year from now now when they have Mythos capabilities [...]

The "Mythos capabilities" is a pretty arbitrary threshold. It could have happened any point before or after. China treats this technology in very different ways. And China's economy and foreign policies are very different, in such export-based economy export controls make much no sense. Unless something changes drastically in the global relations. I expect the opposite to happen, if the US leave a void globally, china will be even more incentivised to fill it.

This been said, it is likely that big models are soon no longer "open sourced" (qwen has already started), but because the chinese companies will prefer to sell access themselves, not because of government intervention.

In any case, what happens now is a huge thing, and not sure we grasp its consequences yet. It is definitely beyond any ai safety marketing stunt. Even if this is rolled back at some point, after "guarantees" are established, it has already moved things to change drastically.