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What Anthropic’s S-1 proves and what it leaves out
Anthropic’s public filing shows a business earning far more than outsiders could see. Revenue is running at approximately $68 billion a year, and Q2 2026 was the company’s first quarter with an operating profit. The filing also shows less protection for investors than the growth suggests. Most revenue is pay-as-you-go. Anthropic has committed at least $855 billion to compute, most of it payable whether it uses the capacity. One founder share holds 50.1% of the vote.
Revenue grew from $0.4 billion in Q1 2025 to an implied $16.9 billion in Q3 2026, while compute fell to 48% of revenue and Q2 turned an operating profit.
Table of contents
| Key takeaways | 1 |
| AIBQ breakdown: A better business with weaker terms | 2 |
| What Anthropic earns | 3 |
| The cost to run | 4 |
| How much Anthropic owes | 5 |
| Dilution for public shareholders and who controls it | 6 |
| How much Anthropic is worth | 7 |
| Surprises in the S-1 | 8 |
| Why the S-1 matters for frontier AI | 8 |
| What investors still need to know | 9 |
