Anthropic spent Monday night telling bankers one thing about the biggest AI IPO in history, then telling them to forget it. Late Monday, a company representative emailed a securities filing to banks showing the Claude maker planned to sell about 866.7 million Class A shares at $70 to $80 each — a deal worth up to $69.3 billion at the top of the range, according to Reuters. A follow-up email then said the pricing details were inaccurate and that an updated filing would come later. It did not say what was wrong, and Reuters could not determine it. Anthropic declined to comment.

The timing is what makes the stumble matter. Anthropic is expected to formally launch its investor roadshow on Tuesday, with pricing the following week and the shares set to list on the Nasdaq under the ticker ANT. The roadshow is the moment a company stops being a private phenomenon and starts being a public argument — and Anthropic walked into it having just disowned its own numbers.

The retracted document also revealed a second, stranger piece of the deal: a $26 billion private placement lined up alongside the IPO, with Google, Nvidia, AMD, Broadcom, Micron, Microsoft and TSMC agreeing to buy Class N stock at the IPO price, closing right after the offering. Anthropic's biggest suppliers, customers and competitors are, in effect, underwriting each other's stakes in it.

And the market Anthropic is walking into is not the one it imagined a month ago. Investors had discussed a valuation as high as $2 trillion; Reuters previously reported $1.5 trillion is now viewed as the high end, with some major investors pushing lower after Thursday's AI selloff. Other AI infrastructure listings have already been delayed or withdrawn as rising rates hammered names like CoreWeave.

None of that changes the underlying business. Anthropic disclosed revenue of almost $17 billion for the quarter ended September 30 — though its quarterly growth rate has declined sharply — and nearly $900 billion in computing commitments with partners including Amazon and Google. The company that built Claude is, by any measure, enormous. The question the roadshow has to answer is whether enormous is enough, at a price nobody has yet agreed on — including, apparently, Anthropic itself. Watch the corrected filing: the gap between it and $69.3 billion will say more about this IPO than any roadshow slide.

— via Reuters