Anthropic Long-Term Benefit Trust — Headquarters: San Francisco, CA

NoteSubject mismatch: The claim is about 'Anthropic Long-Term Benefit Trust' (a separate governance entity), while the source is about Anthropic PBC (the company). The source confirms the LTBT exists and names its trustees, but does not provide the headquarters location of the trust itself. The source is about Anthropic's company page, not the trust's independent operational details. To verify the trust's headquarters, a source specifically about the trust's registration or governance documents would be needed.