Anthropic says it has confidentially filed an IPO prospectus with the SEC, "setting up a potentially historic share sale for investors ready to jump into artificial intelligence," reports CNBC. The move puts Anthropic ahead of OpenAI's expected filing and follows explosive reported growth, a massive new valuation, major infrastructure deals, and ongoing tensions with the Pentagon over its models. From the report: "This gives us the option to go public after the SEC completes its review," Anthropic said in a statement on Monday. "The proposed initial public offering will depend on market conditions and other factors."

Submitting a confidential prospectus doesn't lock Anthropic into a certain timeframe for going public. Its official prospectus just has to land in the hands of investors at least 15 days before the company begins a roadshow. [...] The company has experienced explosive growth this year, announcing in May that its revenue run rate has ballooned to $47 billion, up from $10 billion in annual revenue last year. Last week, it closed a funding round at a $965 billion valuation, topping OpenAI, which was valued at $852 billion in late March.

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