Anthropic officially files for its public debut

Anthropic has officially filed for an initial public offering, marking one of the most anticipated public debuts in U.S. history. The filing revealed the scale of its enterprise business, with over 11,900 customers spending $100,000 or more annually, 1,900 customers spending $1 million or more, and approximately 250 customers spending $10 million or more as of the end of September.

Unlike earlier leaked documents, this official S-1 filing provides the first confirmed details on Anthropic's enterprise customer base, including specific spending tiers for over 11,900 clients.