Anthropic Files S-1 for Historic IPO, Revealing $16.3B Revenue and $80.7B Loss

Anthropic, the AI company behind the Claude model, officially filed its public registration statement with the U.S. Securities and Exchange Commission on October 26, 2026, formally launching its path toward one of the largest initial public offerings in history. The company, which confidentially submitted its draft Form S-1 in June, disclosed explosive revenue growth alongside massive losses, intensifying scrutiny around the profitability of generative AI companies at scale.