Anthropic Files Confidentially for Initial Public Offering

Anthropic, the artificial intelligence lab behind the popular chatbot Claude, has taken a significant step towards going public. The company announced in a blog post on Monday that it has filed confidentially for an initial public offering (IPO). The San Francisco-based AI powerhouse, valued at close to $1 trillion, submitted a draft registration statement to the U.S.

Securities and Exchange Commission for a proposed initial public offering. However, Anthropic has yet to disclose the number of shares to be offered or set the price. The company noted that the proposed IPO will depend on market conditions and other factors.

This move comes on the heels of a substantial funding round, where Anthropic raised $65 billion in a Series H funding round last week. This round, co-led by Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, Capital Group, Coatue, and D1 Capital Partners, pushed the company's valuation to $965 billion. The funding round attracted a host of institutional and strategic investors in anticipation of the IPO.

The IPO landscape is heating up, with SpaceX also seeking to go public with a valuation target of $2 trillion. The Elon Musk-led aerospace company is looking to raise more than $75 billion. Meanwhile, Anthropic's rival OpenAI continues to secure funding, having closed a $122 billion round in March at an $852 billion post-money valuation.

OpenAI is expected to file for an IPO soon, setting the stage for a competitive IPO season between the two leading AI labs. Anthropic, founded in 2021 by former OpenAI employees, has rapidly emerged as a major player in the AI sector. Once considered an underdog, the company has secured top-tier enterprise customers for its Claude chatbot and powerful model Mythos.

Mythos, released on a limited basis, has shown impressive capabilities, including discovering thousands of high-severity bugs that need to be fixed before wider release. The company's revenue growth has been remarkable, with its revenue run-rate surpassing $47 billion, up from $9 billion at the end of 2025. This growth is expected to accelerate as Anthropic makes Mythos more widely available.

The company is poised to give the European Union's cybersecurity agency access to Mythos, according to a Bloomberg report citing anonymous sources.