Personnel: Jared Kaplan at Anthropic (Co-founder)

Note: While the source is from Anthropic's official company page and discusses the organization, it does not specifically mention Jared Kaplan or provide information about co-founders or their start dates. The Board of Directors listing does not include Jared Kaplan. The source material does not address the specific claims about Jared Kaplan's role, affiliation, or start date, making these claims unverifiable based on this particular source text.