Anthropic’s IPO prospectus is out in the wild, and the numbers are as extreme as the company’s growth story. According to the document, seen by Reuters, Anthropic lost $42 billion in 2025, plans to spend $518 billion on cloud, computing and infrastructure obligations in the coming years, and could be valued at more than $2 trillion when it eventually lists.
Here’s a breakdown of what the filing says about Anthropic’s finances.
Anthropic’s 2025 Revenue: Up 12-Fold To Nearly $4.6 Billion
Anthropic’s revenue grew 12-fold in 2025 to nearly $4.6 billion. That figure is recognized revenue for the calendar year, which is why it looks smaller than the headline numbers the company has been putting out. Anthropic’s annualized revenue run-rate has since crossed $47 billion, a measure that annualizes recent monthly sales rather than adding up what was actually booked over the year.
The gap between the two shows just how steep the curve has been. Anthropic’s run-rate went from $19 billion in early March to $30 billion by April, and higher still after that.
The $42 Billion Net Loss, Explained
The headline loss looks alarming, but most of it isn’t cash the company burned running its business. Roughly $34 billion of the near-$42 billion net loss was an accounting charge, reflecting a higher estimated value of financing that could eventually convert into Anthropic shares.
Strip that out and the operating picture is still one of heavy losses:
- Operating loss: $8.06 billion in 2025, up from $2.98 billion in 2024
- Total operating expenses: $12.65 billion
- Compute and infrastructure spending: $7.33 billion, a threefold jump from 2024 and more than half of all operating expenses
- Cash and short-term investments: $20.28 billion as of December 31
A $518 Billion Bet On Compute
The most striking number in the prospectus is forward-looking. Anthropic plans to spend $518 billion on cloud, computing and infrastructure obligations over the coming years. Against 2025 revenue of $4.6 billion, that is a commitment that only makes sense if the company’s growth continues at a pace with little precedent.
The prospectus frames this as a wager that AI will reshape the global economy more profoundly than industrialization, electricity or the internet. Amazon and Google, two of Anthropic’s early strategic backers, have invested billions in the company while also supplying the cloud infrastructure used to train and deploy Claude.
Customer Concentration And Contract Risk
The filing also flags some risks that investors will want to weigh. Nearly a quarter of Anthropic’s 2025 revenue came from just two customers. The company also warned that many of its largest clients aren’t locked into long-term contracts and could cut or stop spending.
That fits with a broader debate over how durable Anthropic’s growth is. One analysis of the company’s valuation argued that the assumptions behind a near-trillion-dollar price tag are more fragile than they appear. There is also an ongoing argument over accounting: OpenAI has previously claimed that Anthropic overstates its run-rate by booking cloud partner revenue on a gross basis.
Anthropic’s IPO Valuation Target: More Than $2 Trillion
The public offering could value Anthropic at more than $2 trillion, over double the $965 billion valuation from its May funding round. Just a year and a half ago, the company was valued at $61.5 billion.
The timing may slip. Reuters previously reported that the debut is likely to be pushed until after the November US midterm elections. If Anthropic goes first, it would set the valuation benchmark for AI labs and put pressure on OpenAI, which confidentially filed for an IPO in June and is expected to list by early 2027, according to media reports.
What The SpaceX IPO Tells Us About Investor Appetite
Anthropic would follow SpaceX, whose blockbuster June IPO valued the company at $1.77 trillion. SpaceX shares surged 19% on their June 12 debut to $160, but now trade around $147, still above the $135 IPO price. AI and chip stocks have sold off recently, so Anthropic’s listing will test whether investor enthusiasm for AI can survive closer scrutiny of numbers like these.
Safety Concerns And Political Friction
The prospectus arrives as Anthropic faces pressure on other fronts. The company has published research showing that increasingly autonomous AI models can behave in unexpected and harmful ways in controlled tests, including sabotaging code, assisting fraud and manipulating information. In its filing, Anthropic also warned that AI could pose existential risks to humanity.
CEO Dario Amodei has called on the global AI community to slow the pace of new releases, even as Anthropic launched its Opus 5.5 model last week to counter OpenAI’s momentum following GPT-6 Astra. Anthropic has also clashed with the White House over the use of its tools, which led the Pentagon to temporarily blacklist the company, a move a US judge blocked in August. Anthropic declined to comment on the Reuters report.
Anthropic Financials At A Glance
| Metric | Figure |
|---|---|
| 2025 revenue | ~$4.6 billion (12x growth) |
| 2025 net loss | ~$42 billion |
| Of which accounting charge | ~$34 billion |
| 2025 operating loss | $8.06 billion (vs. $2.98 billion in 2024) |
| Total operating expenses | $12.65 billion |
| Compute and infrastructure spend | $7.33 billion |
| Cash and short-term investments | $20.28 billion |
| Future compute and infrastructure obligations | $518 billion |
| Reported IPO valuation target | $2 trillion+ |