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Warren Gives Anthropic Until November 3 to Answer Four Pages of S-1 Existential-Risk Questions

Summary

Senator Elizabeth Warren sent CEO Dario Amodei a four-page letter demanding exhaustive written responses by November 3, days after Anthropic's S-1 flagged existential-risk language. The questions cover concentration risk from Amazon and Broadcom partnerships, the ~$2T valuation justification, and the company's own safety disclosures. The letter marks the first senior congressional pressure tied directly to the Anthropic IPO filing.