The main source I'm aware of is this Reuters article: https://www.reuters.com/world/beijing-is-looking-curbing-overseas-access-chinas-top-ai-models-sources-say-

The main source I'm aware of is this Reuters article: https://www.reuters.com/world/beijing-is-looking-curbing-overseas-access-chinas-top-ai-models-sources-say-2026-07-07/ https://www.reuters.com/world/beijing-is-looking-curbing-ove... However you should take it with a pinch of salt because IMO their direct quotations do not support their title.