OpenAI endorsed four California bills including SB 813, which Newsom signed September 11 creating an independent AI verification framework, with Chief Global Affairs Officer Chris Lehane citing "the recent jump in capabilities" as the reason for reversing past opposition.
A structural debate also entered the story: David Sacks and others argue that safety regulations requiring continuous monitoring could effectively exclude open-weight models from the market without a formal ban. Anthropic denied supporting a blanket open-weight ban, described open models without dangerous capabilities as a public good, and argued regulation should be capability-based rather than openness-based.