Anthropic's $965B valuation, explained
How Anthropic went from a $380B valuation to $965B in months: what's driving it, how it compares to OpenAI, and whether the multiple is justified.
In February 2026, Anthropic was worth $380 billion. By late May, a $65 billion Series H valued it at $965 billion, within striking distance of a trillion-dollar private company. This piece breaks down what’s behind the number.
The short version
Anthropic’s valuation is built on one thing above all: revenue growth that is almost without precedent. Annualized run-rate went from roughly $9B at the end of 2025 to ~$47B by May 2026. At ~$965B, that’s a revenue multiple of roughly 20x run-rate. That figure is high, though lower than OpenAI’s ~35x on the same basis.
What’s driving the growth
- Claude Code. The coding agent became a multi-billion-dollar run-rate product on its own, anchoring enterprise adoption.
- Enterprise deployment. Claude is embedded in core workflows across large organizations.
- Distribution. Claude is the first frontier model available on all three major clouds: AWS, Google Cloud, and Azure.
How it compares to OpenAI
OpenAI’s last round valued it at ~$852B post-money on roughly $24B annualized revenue. Anthropic, at ~$965B on ~$47B run-rate, is both more valuable and trading on a lower revenue multiple, a notable inversion from a year ago.
The bear case
The losses are real. Frontier-model training and compute are enormously expensive, and Anthropic has not disclosed sustained GAAP profitability. The valuation prices in years of continued hypergrowth. A public S-1 will test how much of the run-rate converts to durable, high-margin revenue.
Bottom line
The $965B mark is aggressive but not unmoored. It tracks a revenue curve that genuinely justifies a premium. The open question is margins, which only the public S-1 will answer.
Update, October 2026
The public S-1, filed on October 26, 2026, has started to answer the margin question. Anthropic made its first GAAP operating profit in the second quarter of 2026, as compute costs fell to about half of revenue. The new question is the size of the compute contracts behind that. Our S-1 explainer goes through the figures and what they mean for the IPO.
This is analysis, not investment advice. See our disclaimer.