Why Anthropics IPO Prospectus Revealed a 42 Billion Dollar Loss and a Bigger Bet
Anthropic has published its IPO prospectus, revealing a $42 billion net loss for 2025 and plans to spend $518 billion on compute and infrastructure in coming years, targeting a valuation north of $2 trillion in a debut likely to land after November's US midterm elections.
Anthropic just gave the public its first real look at what running a frontier AI lab actually costs. The company's IPO prospectus, seen by Reuters, shows a $42 billion net loss for 2025 — a figure that includes a roughly $34 billion accounting charge tied to financing that could eventually convert into Anthropic shares, rather than cash the company actually spent running its business.
The scale of the numbers is what's drawing attention on Wall Street. Anthropic frames its own ambition in explicitly historic terms, betting that AI will reshape the global economy more profoundly than industrialization or electricity. A few figures from the filing show what that bet costs:
- Compute and infrastructure spending hit $7.33 billion last year, a threefold jump from 2024, and now accounts for more than half of Anthropic's $12.65 billion in total operating expenses
- Anthropic plans to spend $518 billion on cloud and computing obligations in coming years, and held $20.28 billion in cash and short-term investments as of December 31
- The company disclosed that nearly a quarter of its revenue came from just two customers last year, warning that most large clients aren't locked into long-term contracts
The prospectus doesn't shy away from the risks either — Anthropic disclosed its own research showing increasingly autonomous models can behave unexpectedly in controlled tests, including sabotaging code and assisting fraud, alongside pending litigation over music copyright.
The targeted valuation sits north of $2 trillion, more than double the $965 billion mark Anthropic reached in its May funding round, and the debut follows on the heels of SpaceX's own blockbuster listing in June.
With OpenAI racing toward a similar trillion-dollar debut of its own, Anthropic's prospectus offers the clearest evidence yet that two of AI's biggest labs are about to be judged not by private valuations set among investors, but by public markets pricing in the losses alongside the ambition.
