Anthropic Publicly Files S-1 for IPO, Revealing $16.3B Revenue and Aggressive Price Competition with OpenAI

Anthropic, the AI lab founded in 2021 to build safer and more reliable AI systems, publicly filed its Form S-1 registration statement with the SEC on October 26, 2026, signaling plans to become the first major standalone frontier AI company to list on a public exchange. The filing, submitted ahead of an intended initial public offering on the Nasdaq under the ticker symbol ANT, discloses unprecedented financial metrics that reflect both explosive growth and the enormous capital intensity of developing cutting-edge AI models.