Anthropic just passed OpenAI — $950 billion valuation, world's most valuable private company

Anthropic just became the most valuable private company in the world. On May 12, 2026, Bloomberg confirmed the company is in talks to raise $30 billion at a $900 billion valuation. The New York Times followed within days with sources putting the round as high as $50 billion at $950 billion. Either number eclipses OpenAI's $825 billion for the first time and rewrites the order at the top of the AI market.

The driver is revenue, and the curve is the part to read carefully. Anthropic ended 2025 at roughly $9 billion in annualized revenue. By the time CEO Dario Amodei took the stage at the company's May DevDay, the number had climbed past $30 billion, then to over $44 billion. Five times in five months. Inference gross margins moved from 38% a year earlier to over 70% in the same window. That is not a hyped growth story. That is the unit-economics math of a company that has solved its cost-of-goods problem.

TechCrunch's sources frame the $50 billion round as something specific: Anthropic's last private fundraise. An IPO target is now being discussed for October 2026. If the round closes at the high end and the IPO opens at a similar multiple, the public-markets debut would land in the top three largest tech IPOs in U.S. history.

The countervailing angle is the question every public-markets investor will ask twice: who actually owns Anthropic at this point? Google pledged up to $40 billion in April 2026. Amazon committed up to $25 billion earlier. Add the new $30 to $50 billion private round and the cap table starts to look less like a startup and more like a joint venture between two hyperscalers and a Wall Street syndicate. The circular-financing concerns that surfaced around Nvidia's $40 billion OpenAI stake apply here too. Anthropic's largest customers are also its largest investors. The independence question is real.

Why this matters: for two years, the AI industry has been narrated as an OpenAI story with Anthropic as the safety-conscious challenger. As of this week, the order is reversed at the valuation layer. The most valuable AI lab in the world is the one shipping enterprise deployments, the legal vertical, the cybersecurity coalition, and the $200 billion Google Cloud commitment. The narrative will catch up to the math by the time of the IPO roadshow.

What to watch: whether the round actually closes at $950 billion or settles at $900 billion (a sub-$50 billion drop is still meaningful for the public-markets comp set), whether Microsoft increases its OpenAI position to counter, and whether the SEC opens a comment file on the circular structure before the IPO filing.

The line that matters: Anthropic at end of 2025 was a $9 billion company. By the time the IPO bell rings, it will be a $1 trillion company. Read the time scale of that sentence.