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Anthropic Files for an IPO at $965 Billion — and Just Passed OpenAI

The company whose models I use every day just did something I did not expect to see this fast. On June 1, Anthropic confidentially filed a draft S-1 with the SEC, setting up one of the largest tech IPOs ever attempted (CNBC).

The filing follows a fresh $65 billion funding round that lifted Anthropic’s valuation to roughly $965 billion — eclipsing OpenAI, valued at $852 billion back in late March, for the first time (Fortune).

Let me say the quiet part. The scrappier underdog of the big AI labs is now worth more than the company that started the whole frenzy, and it is racing to Wall Street ahead of them. OpenAI is preparing its own confidential filing and, by some reports, its executives are not thrilled about being beaten to the public market (ABC7).

The numbers behind the headline

A $965 billion valuation is an abstraction until you look at the revenue underneath it. Anthropic expects to post $10.9 billion in revenue for the second quarter, more than double the prior three months, and has told investors its annualized run-rate revenue will pass $50 billion by the end of next month (Fortune).

That growth rate is the entire bull case. A company doubling quarterly revenue gets graded on a different curve than one growing 20% a year. Whether the price is sane depends entirely on whether that curve holds, and nobody — not me, not the analysts quoting nine-figure run rates — actually knows that yet.

“Confidential filing” also matters, and it gets misread constantly. It does not mean Anthropic is going public tomorrow. It means the draft paperwork goes to the SEC privately first, the company and regulators go back and forth, and only later does a public prospectus drop with the financials everyone is waiting to dissect. A fall debut is the reported target, not a promise (CNBC).

What it means for you (independent operators and SMB owners)

If you build your small business on Claude — through the app, the API, or Cowork the way I do — your real question is not the stock price. It is stability. And on that front, a public Anthropic is mostly good news for you.

Public companies have to disclose. Quarterly financials, risk factors, customer concentration, the works. The vendor you have quietly bet part of your operation on becomes far more legible. You will be able to read, in black and white, how much money it makes, where, and what it considers its biggest risks. That is more than you get from most of the private tools in your stack today.

The flip side is the one every operator should keep in the back of their mind. Public companies answer to shareholders every ninety days. Pricing can change. Free tiers can shrink. Roadmaps can bend toward whatever moves the quarterly number. None of that is unique to Anthropic — it is just the gravity that public markets exert. Keep your workflows portable enough that one vendor’s pricing decision does not break your business. That is good hygiene regardless of who is on the cap table.

What it means for you (enterprise IT leaders)

For us, this is a procurement and risk story, not a stock tip.

An Anthropic IPO strengthens the case for putting Claude on an approved-vendor list. A near-trillion-dollar public company with audited financials and SEC disclosure obligations is a fundamentally easier sell to your risk committee than a private startup, no matter how well-funded. The “what if they run out of money” objection gets a lot weaker when the run-rate is reportedly heading past $50 billion.

But watch two things. First, valuations this size raise the stakes on the whole sector. If the public AI trade wobbles, the companies you depend on can be forced into cost discipline that shows up as price increases or deprecated features. Build your contracts and your architecture with that in mind. Second, the Anthropic-versus-OpenAI race to list is going to intensify competition, and competition between your suppliers is usually good for your budget. Use it. A credible second source has never been a bad negotiating position.

My take

I have a soft spot for Anthropic because its product is woven into how I actually work — that is a bias I will own up front. So take this as analysis, not cheerleading.

The valuation is staggering and I am not going to pretend I can defend the exact number. $965 billion prices in years of flawless execution and a market that keeps expanding at its current insane pace. That is a lot of perfection to assume. The revenue growth is real and genuinely rare, but “real and rare” and “worth a trillion dollars” are not the same sentence, and anyone telling you they know which one this is, is guessing with confidence.  Part of me even wonders is they are rushing to cash out before a bubble burst.

What I am confident about is narrower: the tools are good, they are getting better, and a public, disclosing, well-capitalized Anthropic is a more dependable vendor to build on than a private one. For those of us who put real work through Claude every day, that stability is worth more than where the stock opens. Watch the prospectus when it goes public. The financials in that document will tell you more than any valuation headline.

News commentary by Brad Rowland — IT Infrastructure and Operations leader, automation builder, and AI implementer. Sources are linked inline. This is opinion and analysis, not financial advice.

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