Anthropic Closes $30B Series H at $900B Valuation — Now Worth More Than OpenAI
Anthropic has agreed terms on a $30 billion funding round at a $900 billion pre-money valuation, co-led by Sequoia, Dragoneer, Greenoaks, and Altimeter. The deal would make Anthropic the most valuable private AI company in the world, surpassing OpenAI's March 2026 valuation of $852 billion.
Anthropic has agreed terms on a $30 billion Series H financing round at a $900 billion pre-money valuation, according to reporting from Bloomberg, TechCrunch, and The Information confirmed as of May 17. The round would nearly triple the company’s $380 billion Series G valuation from February 2026 and push Anthropic past OpenAI — most recently valued at $852 billion in March — as the highest-valued private AI lab in the world.
Sequoia Capital, Dragoneer Investment Group, Greenoaks Capital, and Altimeter Capital are co-leading the round. Each is understood to be committing at least $2 billion. The deal is expected to close before the end of May, though terms could still change before signing.
What’s driving the number
Anthropic’s revenue growth is the clearest answer. Claude Code has converted meaningfully from the developer tool category into a genuine enterprise workflow product, with companies running coding agents across large codebases at a scale that drives consistent subscription revenue. Enterprise Claude adoption has followed a similar pattern, with large organizations standardizing on the API for internal tooling and customer-facing products.
Google and Amazon remain the company’s largest institutional investors — $10 billion and $5 billion respectively — but neither is understood to be leading this new round. The incoming co-leads reflect broader market conviction that the frontier model race is not consolidating around a single winner.
IPO on the horizon
Anthropic is simultaneously exploring a public offering as early as October 2026. The IPO track and the Series H are not mutually exclusive — a late-2026 public filing would give the company roughly five months to absorb the new capital, update audited financials, and test investor appetite at a moment when AI infrastructure spending shows no signs of slowing.
The timing matters. If Anthropic files before the end of 2026, it would be the first frontier AI lab to go public, ahead of OpenAI’s frequently discussed but still uncommitted IPO plans.
The valuation context
$900 billion is a number that demands comparison. It puts Anthropic ahead of JPMorgan Chase, Visa, and Johnson & Johnson by market cap equivalence — and above every publicly traded tech company except Apple, Nvidia, Microsoft, Alphabet, Amazon, and Meta. For a company that did not exist six years ago, the figure reflects how completely investor expectations have recalibrated around AI revenue potential.
Skeptics will note that Anthropic, like OpenAI, remains deeply unprofitable by design — training runs and inference compute costs are enormous, and the competitive pressure to stay at the frontier requires continuous capital deployment. The $900 billion bet is that the company’s lead in safety-oriented enterprise AI and its regulatory positioning in Washington and Brussels will translate into durable margin over time.
The deal’s co-leads seem to agree. Whether the public markets do remains to be seen at October.