One reason SB 53 may be more popular than SB 1047 is that it’s less severe. Senator Wiener addresses these concerns: He lacks faith in the federal government to pass meaningful AI safety regulation, so states need to step up. Senator Wiener thinks it’s critical for California to lead the nation on AI safety, but without choking off innovation. SB 1047, and now SB 53, have helped to foster that conversation about safe innovation. SB 1047 was more of a liability bill, SB 53 is more of a transparency bill.