Anthropic files for IPO, targeting record $100 billion raise with Japanese underwriters

U.S. AI developer Anthropic has filed paperwork for an initial public offering, potentially raising over 15 trillion yen in what could be the largest IPO in history. Anthropic, the creator of the conversational AI "Claude," submitted its prospectus to the U.S. Securities and Exchange Commission on October 26. The company aims to list on the Nasdaq in November, with possible fundraising exceeding $100 billion, according to U.S. media reports. Japanese securities firms under Mizuho and Mitsubishi UFJ are among the underwriters, indicating plans to raise funds from Japanese investors. The IPO comes amid growing market caution over massive AI investments, with attention focused on how much capital investors will commit.