Anthropic confidentially filed a draft S-1 registration statement with the U.S. Securities and Exchange Commission on Monday for a proposed initial public offering, the company said. The artificial intelligence company behind the Claude chatbot did not set the number of shares or a price, and said any listing would follow the SEC's review and depend on market conditions. The step comes days after Anthropic raised $65 billion at a $965 billion post-money valuation, which moved it ahead of OpenAI, Reuters reported. OpenAI's most recent valuation was $730 billion, according to the New York Times.

The submission was made under Rule 135 of the Securities Act of 1933, which lets a company disclose a planned offering without releasing its terms. Anthropic, which is registered as a public benefit corporation, said the announcement was not an offer to sell stock. Its valuation has more than doubled since February, when it raised $30 billion at a $380 billion valuation. Much of the growth has come from tools that automatically write computer code, the New York Times reported.

At close to $1 trillion, Anthropic would enter the top tier of the S&P 500 if it completes the listing. Reuters reported that bankers expect an offering of that scale to drain liquidity and attention from smaller debuts. The filing follows SpaceX's planned $75 billion offering at a $1.75 trillion valuation.

OpenAI is preparing to confidentially file for a U.S. IPO in the coming weeks, a person familiar with the matter told Reuters in late May, a step that would place Anthropic's figures inside a rival's prospectus. Both companies have pledged a large share of their stock to charity. Anthropic did not set a timeline for the offering, which depends on the completion of the SEC's review.

More details soon here on implicator.ai.

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Editor-in-Chief and founder of Implicator.ai. Former ARD correspondent and senior broadcast journalist with 10+ years covering tech. Writes daily briefings on policy and market developments. Based in San Francisco. E-mail: editor@implicator.ai