AI research is just like everything else that’s digital, unstoppable once its in the wild. Fact of the matter is there are simply too many hands on this across governments, corporations, universities, research institution, military operations, etc - globally - for any proposed “pause” to be implemented with any efficacy.
The CCP already blocks ChatGPT - my friends there use VPN to access it. But at the same time the CCP is certainly running it own “state-directed” AI programs which can be seen and felt in their surveillance and restriction technology - they are certainly not going to stop or pause development and to the extent they can they will export this.