Anthropic is set to close a funding round of more than $30 billion at a pre-money valuation above $900 billion as soon as the week of May 26, according to Bloomberg — a figure that would make the Claude maker the most valuable private AI company in the world, edging past OpenAI's $852 billion mark from March 2026.
The round reportedly came together in a matter of weeks, a signal of how aggressively capital is still chasing frontier-model equity even as scrutiny mounts over the economics underneath the buildout.
A four-way lead at $2B apiece
Sequoia Capital, Dragoneer Investment Group, Altimeter Capital and Greenoaks Capital Partners are each expected to put in roughly $2 billion to co-lead the financing, per Bloomberg. Existing backers including Founders Fund and General Catalyst are also slated to participate. The structure — four co-leads writing checks of similar size rather than a single anchor — spreads exposure across a syndicate and underscores how few funds can absorb multi-billion-dollar allocations at this scale.
The raise lands only months after Anthropic's $30 billion Series G in February, which priced the company at a $380 billion post-money valuation. A roughly 2.4x step-up inside a single quarter is the kind of mark-up that has defined the 2026 frontier-lab financing cycle.
Timed against OpenAI's IPO clock
The close follows OpenAI's confidential IPO prospectus, filed May 22 with Goldman Sachs and Morgan Stanley reportedly leading and a listing targeted as early as September. That puts the two largest Western labs on divergent capital paths: OpenAI heading toward public markets, Anthropic doubling down on private megarounds. At more than $900 billion pre-money, Anthropic would be raising at a valuation rivaling what OpenAI hopes to command at IPO.
What's funding the markup
CEO Dario Amodei said Anthropic hit a $30 billion annualized revenue run-rate in April after what he called "crazy" 80x growth — up from roughly $9 billion at the end of 2025, $14 billion in February and $19 billion in March. Some sources peg the figure higher; Sacra estimates Anthropic reached about $43 billion annualized in April. Much of the surge traces to Claude Code, the agentic coding tool that hit $1 billion in annualized revenue within six months of its mid-2025 launch.
The builder takeaway
For teams building on Claude, a $900 billion-plus valuation backstops the compute commitments — including the $200 billion-plus Anthropic has earmarked for Google Cloud — that keep Opus and Sonnet capacity online. It also deepens a structural reality: a handful of labs now control both the models and the multi-year compute contracts, and procurement leverage flows accordingly. The signal worth watching is whether a freshly capitalized Anthropic finally pairs scale with the enterprise pricing and SLA terms production buyers have been pushing for.
