On May 28, 2026, Anthropic announced a $65 billion Series H funding round that values the company at $965 billion post-money. The raise pushes the maker of Claude past rival OpenAI for the first time and ranks among the largest private financings in the history of technology. It also lands the company within striking distance of a trillion-dollar valuation while still a private business.
The headline numbers
The round was led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital, with each lead investor reportedly committing more than $2 billion. A second tier of co-leads included Capital Group, Coatue, D1 Capital Partners, GIC, ICONIQ, and XN. Roughly $15 billion of the total represents previously committed investment from hyperscalers, including $5 billion from Amazon.
To put the scale in perspective, the new valuation nearly triples where Anthropic stood in February, when its Series G raised $30 billion at a $380 billion valuation. Since its founding in 2021, the company has now pulled in on the order of $125 billion in total funding.
Overtaking OpenAI
The significance of the round is as much competitive as it is financial. OpenAI’s most recent valuation sat at $852 billion, set in March after its own record-breaking raise. Anthropic’s $965 billion figure edges ahead of that mark, reshuffling the pecking order at the top of the AI industry. Both companies are widely expected to pursue public listings, and this round is being framed as potentially Anthropic’s final private fundraise before an IPO.
Revenue catching up to the hype
What makes the valuation less abstract than it might first appear is the revenue trajectory behind it. Anthropic said its run-rate revenue crossed $47 billion earlier in May, up sharply from a $30 billion run rate earlier in the year and roughly $10 billion in annual revenue the year before. Much of that growth has been attributed to demand for its coding and agentic products, including Claude Code and Cowork.
The company said the new capital will go toward safety and interpretability research, expanding compute capacity to meet demand, and scaling the products and partnerships its customers depend on. The announcement also coincided with the release of a new flagship model, and the company signaled that its most capable model class would reach a wider set of customers in the weeks following.
What it signals
Stepping back, the round is a snapshot of the current moment in AI: capital is flowing into a small number of frontier labs at valuations that would have seemed implausible a couple of years ago, and those valuations are increasingly backed by real, fast-growing revenue rather than promise alone. Whether the numbers ultimately prove justified will depend on how durable that revenue is and how the eventual public-market debut is received. For now, though, the gap between the leading labs is being measured in hundreds of billions of dollars, and the ordering at the very top has just changed hands.
Sources: Bloomberg, Anthropic, CNBC, Axios, Crunchbase, and TechCrunch.