- The Anthropic IPO filing with the SEC officially kicks off the company’s path to going public at a $965B valuation.
- Anthropic IPO details remain limited for now, as the company chose to file its registration statement confidentially.
- Anthropic’s valuation now tops OpenAI‘s $852B post-money figure, making it the world’s most valuable startup.
- The filing lands just weeks before SpaceX’s planned June 12 public debut, set to be the largest IPO in history.
- The Anthropic IPO filing with the SEC officially kicks off the company’s path to going public at a $965B valuation.
- Anthropic IPO details remain limited for now, as the company chose to file its registration statement confidentially.
- Anthropic’s valuation now tops OpenAI’s $852B post-money figure, making it the world’s most valuable startup.
- The filing lands just weeks before SpaceX’s planned June 12 public debut, set to be the largest IPO in history.
Anthropic IPO Filing Makes It Official
The Anthropic IPO is no longer just rumour. On Monday, the San Francisco-based AI company quietly submitted a draft registration statement to the U.S. Securities and Exchange Commission, setting the stage for what could become one of the most closely watched public offerings in Silicon Valley history. Months of speculation about whether Anthropic or its arch-rival OpenAI would blink first in the race to public markets are now over — at least on Anthropic’s end.
The move arrives less than a week after Anthropic closed a fresh fundraising round that vaulted its post-money valuation to $965 billion — nudging past OpenAI’s own towering $852 billion figure and, at least by that metric, crowning Anthropic the world’s most valuable private tech company. That’s a remarkable position for a company that only launched in 2021 and was founded by Dario Amodei, Daniela Amodei, and a cohort of former OpenAI researchers who wanted to build AI with safety as a first principle rather than an afterthought.
What the Confidential Filing Actually Means
Here’s the catch: don’t expect to read the full prospectus just yet. Anthropic chose to submit what’s known as a confidential draft registration statement — a standard but strategically useful option that the SEC allows under the JOBS Act. It means the public won’t see the juicy details that typically accompany an S-1 filing: things like executive compensation, revenue figures, customer concentration risks, or how the company plans to turn its massive compute spending into sustainable profit. All of that stays under wraps until Anthropic decides to go fully public with the filing, which typically happens three weeks before a company’s IPO roadshow begins.
It’s a smart play. Going confidential gives Anthropic’s leadership time to gauge market conditions, quietly address SEC feedback, and refine its narrative before Wall Street and the press get to tear the numbers apart. It’s the same route that many high-profile tech companies have taken in recent years. But it also means investors and observers will be left reading tea leaves for a while longer.
What we do know is that Anthropic’s business model centres on its Claude family of AI models — sold through API access to developers and enterprises, as well as through its own consumer-facing Claude.ai product. The company has reportedly been investing heavily in safety research alongside commercial development, a positioning choice that’s helped it win contracts with cautious enterprise buyers and government clients who are wary of OpenAI’s more commercially aggressive posture. For investors tracking the Anthropic IPO, that enterprise traction will be one of the most closely watched data points when the full prospectus eventually drops.
The Valuation Race Against OpenAI
The Anthropic IPO story can’t be told without constantly referencing OpenAI, and honestly, that’s by design. These two companies are mirror images of each other in some ways — both founded by people who believed AI was one of the most consequential technologies humanity had ever built, and both convinced that the other was doing it slightly wrong. OpenAI went down the path of rapid commercialisation and a complicated capped-profit structure; Anthropic went full public benefit corporation, with safety research baked into its charter.
And yet here they are, neck and neck in a valuation war that reads more like a startup arms race than a philosophical debate. Anthropic’s $965 billion post-money valuation — which, let’s be clear, is not the same as being worth $965 billion in any traditional sense — edges out OpenAI’s latest $852 billion figure. Post-money valuations reflect what investors paid in at the most recent round, which means they can be generous, even optimistic. The real test of the Anthropic IPO comes when the company has to justify those numbers on a public exchange with quarterly earnings calls and analyst pressure.
OpenAI has its own IPO ambitions, and its legal landscape just got a little clearer. Shortly before the Anthropic filing dropped, a judge dismissed all claims in Elon Musk’s high-profile lawsuit against OpenAI, citing the statute of limitations. That ruling removes one significant overhang from OpenAI’s business, potentially smoothing its own path to the public markets. So the race is very much still on.
SpaceX, Musk, and a Surprising Business Tie
The timing of the Anthropic IPO filing is notable for another reason: it lands less than two weeks before SpaceX’s planned public debut on June 12. SpaceX is eyeing an $80 billion raise in what would be the largest IPO in American stock market history — a staggering figure that puts even Anthropic’s valuation in a different light.
What makes this particularly interesting is that SpaceX and Anthropic aren’t just sharing the IPO spotlight — they’re also business partners. Anthropic recently signed a deal to pay SpaceX $15 billion per year to use its data centres. That’s a significant commercial relationship, and one that raises its own questions: Elon Musk, who owns SpaceX and also runs xAI (Anthropic’s indirect AI competitor through the Grok model), is now a major infrastructure vendor for one of the AI companies he’s publicly criticised. It’s the kind of strange bedfellows arrangement that only makes sense in the current AI gold rush, where compute capacity is so scarce that companies will take it wherever they can find it.
What Happens Next — and Why It Matters
The Anthropic IPO process is now formally underway, but we’re still in the early chapters. The company will need to work through SEC review, finalise its prospectus, and then hit the road to pitch institutional investors before setting a price and listing date. Given the scale of its valuation, the Anthropic IPO will be one of the largest tech listings in recent memory — potentially rivalling the likes of Snowflake’s 2020 debut or Arm Holdings’ 2023 listing.
There are real questions that the public filing will eventually have to answer. How fast is Anthropic actually growing? What does its path to profitability look like when it’s spending billions on compute — including $15 billion annually just to SpaceX? And can it maintain its safety-first brand identity while simultaneously competing with OpenAI on features and pricing in a market that’s moving at a relentless pace?
The AI industry has never had a pure-play frontier model company trade on a public exchange. The Anthropic IPO — assuming the company gets there — would be a genuine first. It would force quarterly transparency on a business that’s been largely opaque, and it would give the market a real benchmark for valuing AI model companies. Every number Anthropic discloses in its eventual S-1 will be scrutinised not just for what it says about Anthropic, but for what it implies about the entire generative AI sector. That’s a lot of pressure for a company that has, until now, operated mostly behind closed doors.
