Jack Clark — Notable For: Co-founder of Anthropic; former Policy Director at OpenAI; creator of the Import AI newsletter; AI policy advocate

NoteThe source directly confirms all four elements of the claim: (1) 'co-founder of Anthropic' — explicitly stated; (2) 'former Policy Director at OpenAI' — explicitly stated as 'He formerly served as OpenAI's Policy Director'; (3) 'creator of the Import AI newsletter' — confirmed as 'author of the weekly ImportAI newsletter'; (4) 'AI policy advocate' — confirmed through his participation in fact-finding studies, forums relating to AI, testimony before House Science Committee on AI's societal and ethical implications, and membership on the AI Index Steering Committee. All claims are directly supported by the source text.