- Anthropic closed a $65B Series H at a $965B post-money valuation, overtaking OpenAI’s $852B mark from March.
- Its revenue run rate hit $47B, up from $10B a year ago, with the WSJ reporting a path to a first operating profit.
- Samsung, SK Hynix, and Micron joined the round alongside Altimeter, Sequoia, and Amazon’s $5B commitment.
- This is likely Anthropic’s final private round before an IPO, setting up a public-market showdown with OpenAI and xAI.
For two years, OpenAI was the default answer to “which AI lab is winning?” On May 28, 2026, that answer quietly changed. Anthropic, the maker of Claude, announced a $65 billion Series H round at a $965 billion post-money valuation, leapfrogging OpenAI’s $852 billion valuation set just two months earlier. The company that was once framed as the careful, safety-first challenger is now the most valuable private AI firm on the planet, and it got there on the back of revenue, not hype.
The Deal That Flipped the Hierarchy
From challenger to category leader
The Series H was co-led by Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, Capital Group, Coatue, and D1 Capital Partners, with institutional heavyweights including Baillie Gifford, Blackstone, Brookfield, D.E. Shaw Ventures, DST Global, and Fidelity also participating. Roughly $15 billion of the round consists of previously committed capital from hyperscalers, including the $5 billion Amazon pledge announced in April. The headline number matters less than the ranking it produces: Anthropic’s $965B valuation now sits above OpenAI’s $852B post-money figure from its $122B March raise.
Context makes the leap sharper. TechCrunch reported just a month earlier that Anthropic was closing in on a $50 billion round near a $900 billion valuation, with one institutional investor reportedly pledging up to $5 billion simply to secure a meeting with CFO Krishna Rao. The final round came in $15 billion larger than that expectation.
Business Insight — Valuation league tables are signaling tools. When the “safety-first” lab becomes the most valuable, it tells enterprise buyers that responsible AI and commercial dominance are no longer a trade-off. Procurement committees that hedged on Anthropic now have cover to standardize on Claude.
Why Investors Are Piling In
A $47B run rate changes the math
The valuation is aggressive, but it rests on unusually fast revenue. Anthropic said its run rate crossed $47 billion earlier in May, up from a $30 billion run rate at the start of the year and roughly $10 billion in annual revenue the year before. The Wall Street Journal reported that the company expects a 130% revenue surge that would deliver its first operating profit, a rarity among frontier labs still burning cash on compute.
Much of that growth is concentrated in enterprise adoption of Claude Code, the agentic coding product driving large-scale deployments inside demanding organizations. The round landed the same day Anthropic shipped Claude Opus 4.8, a model emphasizing agentic tasks, advanced coding, and self-correction, reinforcing the narrative that product velocity and revenue are moving together.
Business Insight — A $47B run rate with a credible path to operating profit is the real story here, not the valuation. For CEOs, it means Claude is unlikely to be a vendor that disappears or slashes its roadmap to survive. Multi-year platform bets on Anthropic now carry meaningfully lower counterparty risk.
The Hardware Alliance Hidden in the Cap Table
Samsung, SK Hynix, and Micron buy in
One detail deserves more attention than the marquee VCs: strategic infrastructure partners Samsung, SK Hynix, and Micron joined the round. These are the three companies that dominate the high-bandwidth memory that AI accelerators depend on. Their participation is less a financial bet and more a supply-chain alignment, locking Anthropic into priority access to the memory that gates compute scaling.
Anthropic says the new capital will fund safety and interpretability research, expanded compute to meet Claude demand, and the partnerships its customers rely on. Pairing memory suppliers with Amazon’s cloud commitment gives the company an integrated stack from silicon to deployment, a structural advantage as the industry hits hardware bottlenecks.
Business Insight — When your AI vendor’s cap table includes the memory makers, capacity risk drops. For leaders planning 2027 AI budgets, supplier alignment like this is a signal of whether a lab can actually deliver the compute it promises, not just raise money against it.
The IPO Showdown Ahead
Anthropic, OpenAI, and the $2T wildcard
Anthropic describes this as likely its last private fundraise before going public, putting it on a collision course with OpenAI, which is also marching toward an IPO. The wildcard is Elon Musk’s SpaceX, now merged with xAI, which is targeting a $2 trillion valuation and seeking to raise more than $75 billion in its own pending offering. The next 12 months could see three of the largest tech listings in history land almost simultaneously.
For business leaders, the takeaway is that the frontier-model market is consolidating into a small set of extremely well-capitalized public companies. That concentration brings stability and roadmap clarity, but it also reduces pricing leverage for buyers over time. The window to negotiate favorable multi-year terms is widest now, while these labs still compete fiercely for logos ahead of their public debuts.
Business Insight — Three things to check now: whether your AI contracts lock in pricing before these IPOs reprice the market; whether you have a second-source model strategy to preserve leverage; and whether your roadmap assumes the vendor consolidation that is clearly coming.
Related
- Anthropic Is Paying Musk $1.25B a Month for Compute
- Anthropic Taught Claude to Dream — Tasks Got 6x Faster
- OpenAI’s $14B Consulting Push Has McKinsey Worried
- Enterprises Bought $401B in GPUs — 95% Sit Idle
- He Raised $700M Before Showing Anyone the Product
Sources
- TechCrunch — Anthropic raises $65 billion, nears $1T valuation ahead of IPO
- CNBC — Anthropic tops OpenAI as most valuable AI startup
- Al Jazeera — Anthropic soars to $965bn valuation, leapfrogging OpenAI
AI Biz Insider · AI Business EN · aibizinsider.com
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