Anthropic hits $965 billion valuation with $65B Series H round

Anthropic closed a $65 billion Series H funding round on Thursday, valuing the company at $965 billion post-money — the highest valuation ever assigned to a private AI company and a figure that surpasses OpenAI's most recent $730 billion mark. The round was led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital, with an unusually wide co-investor list that spans sovereign wealth funds, global asset managers, and strategic memory chip manufacturers.

The numbers

The headline valuation is $965 billion — close enough to $1 trillion that most headlines are already rounding up. For context: OpenAI's last primary round valued it at $730 billion. Anthropic's Series G closed in February 2026 at a significantly lower figure; this round represents one of the fastest valuation jumps in venture capital history in under four months.

Anthropic disclosed that its annualized run-rate revenue crossed $47 billion earlier this month. That figure puts the revenue multiple at roughly 20x — aggressive, but in line with how frontier AI infrastructure companies have been priced given the pace of enterprise adoption.

The $65 billion total includes $15 billion of previously committed investments from hyperscalers. Amazon's previously announced $5 billion commitment is folded into that number. The remaining $50 billion is new capital from the listed investors.

Who invested

The co-lead group reads like an institutional consensus call: Capital Group, Coatue, D1 Capital Partners, GIC (Singapore's sovereign wealth fund), ICONIQ Growth, and XN. The broader investor list includes Blackstone, Brookfield, Baillie Gifford, D.E. Shaw Ventures, DST Global, Fidelity, General Catalyst, Insight Partners, Jane Street, Lightspeed Venture Partners, MGX, T. Rowe Price, and Temasek.

Three memory chip manufacturers — Micron, Samsung, and SK hynix — are listed separately as "strategic infrastructure partners." Their inclusion is notable: these are not passive financial investors. Anthropic's compute roadmap depends on high-bandwidth memory at scale, and formalizing relationships with the three dominant HBM suppliers at the funding level signals a deliberate supply chain strategy rather than a standard procurement arrangement.

Compute capacity

Alongside the funding announcement, Anthropic disclosed a series of recently signed compute agreements that frame what the capital is actually for. It has agreements with Amazon for up to five gigawatts of new capacity, with Google and Broadcom for five gigawatts of next-generation TPU capacity, and with SpaceX for GPU access across Colossus 1 and Colossus 2 — the 200,000-GPU cluster Elon Musk's xAI built in Memphis.

Claude is now available on all three major cloud platforms — AWS, Google Cloud, and Microsoft Azure — making it the first frontier model to achieve that distribution. AWS remains Anthropic's primary cloud provider and training partner.

What the money is for

CFO Krishna Rao framed the use of proceeds around three priorities: advancing safety and interpretability research, expanding compute to meet what the company calls "historic demand," and scaling the Claude products and enterprise partnerships that drive revenue. Claude Code and Cowork — Anthropic's developer and professional products — were specifically named as examples of where the company is investing.

The interpretability research angle is worth noting. Anthropic has published more mechanistic interpretability work than any other frontier lab, and the Series H framing explicitly ties capital deployment to that program. Whether that research pace continues to scale with compute spend is one of the open questions in AI safety circles.

Context: the same day as Opus 4.8

Anthropic chose to announce the Series H on the same day it launched Claude Opus 4.8, its latest flagship model. The pairing is not accidental: one announcement validates the other. The model demonstrates continued technical progress; the funding demonstrates that the market believes that progress will compound. Together they make the valuation argument easier to sustain in a category where technical differentiation is everything.

The round positions Anthropic as the best-capitalized independent AI lab ahead of OpenAI, which will need its own follow-on round to close the gap. At current burn rates and compute commitments industry-wide, that race is measured in months rather than years.