Illustration: Sarah Grillo/AxiosArchitects of the leading generative AI models are abuzz that a top company, possibly OpenAI, in coming weeks will announce a next-level breakthrough that unleashes Ph.D.-level super-agents to do complex human tasks. We've learned that OpenAI CEO Sam Altman — who in September dubbed this "The Intelligence Age," and is in Washington this weekend for the inauguration — has scheduled a closed-door briefing for U.S. government officials in Washington on Jan. 30.Why it...