Anthropic · OpenAI · Google · Amazon · Fortune Technology
The big takeaways and big questions from Anthropic’s S-1
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Key facts
- Anthropic’s IPO prospectus shows $16.3 billion in revenue, an $80.7 billion net loss, and goal of an ‘age of miracles’ —by Beatrice Nolan Anthropic plans to spend up to $567 billion on compute
- That includes at least $20 billion with AMD and $161 billion in a colossal leasing deal with Broadcom
- The S-1 also shows that the company’s operations generated $3.9 billion in free cash flow in the first half of 2026
- Its customers can walk at any time —by Sebastian Herrera and Jeremy Kahn Anthropic’s 7 cofounders are each worth $14 billion already—and that could…
Summary
OpenAI claims breakthroughs in math, computer science, and physics. OpenAI releases GPT-6.1 Terra. Yesterday Anthropic published its IPO prospectus, giving them some key insights into the company’s financials, and by implication, the economics of the rest of the AI industry. For more of Fortune’s excellent reporting on Anthropic’s prospects, check out the “Fortune on AI” section of this newsletter below. Meanwhile, here’s a look at some of the most interesting things they learned from Anthropic’s S-1, and some of the things they'd still like to know. Once other operating costs were added in, the company’s adjusted operating margin was still at a 19% profit margin in the most recent quarter it reported. (Although that figure excludes the cost of Anthropic’s stock-based compensation, as well non-cash charitable contributions, and what Anthropic is paying to settle copyright violation claims from book authors.