Well he explicitly calls for regulations that ban open weight models, which of course hugely threaten Anthropic's API business model. If we got a open weight model actually around as good as Opus 4.6 that would be extremely bad for them.

Regulating competitors out of existence like that is textbook regulatory capture.

Dario is also huge on regulations banning Chip exports to China, who are the only other real competitors to US Labs, open weight or not.

Also invariably, such corporations always create regulations that are easier for them and harder for competitors.