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Anthropic Closes $65B Series H at $965B Valuation — Now the World's Most Valuable AI Startup

From $380 billion to $965 billion in 15 weeks. Anthropic just closed the largest private funding round in AI history — and it's not even close.

AnthropicAI FundingSeries HValuationVenture Capital

Fifteen weeks ago, Anthropic was worth $380 billion. Today it closed a $65 billion Series H at a $965 billion post-money valuation, making it the most valuable AI startup on Earth — ahead of OpenAI’s $852 billion.

That’s a 2.5x leap in under four months. The AI funding arms race didn’t just find a new gear — it found a whole new transmission.


The Round

Anthropic announced the close on May 28. The $65 billion round was led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital. Co-leads include Capital Group, Coatue, D1 Capital Partners, GIC, ICONIQ, and XN.

The investor list reads like a who’s who of global finance: Blackstone, Brookfield, Fidelity, T. Rowe Price, Jane Street, DST Global, Lightspeed, General Catalyst, Temasek, and Baillie Gifford all participated. This isn’t venture capital anymore — it’s institutional capital placing a generational bet.

Crucially, the round includes $15 billion of previously committed hyperscaler investments, including $5 billion from Amazon. Amazon and Google aren’t just cloud providers anymore — they’re anchor tenants in Anthropic’s capital structure.


The Revenue Machine

The valuation isn’t happening in a vacuum. Anthropic says its run-rate revenue crossed $47 billion earlier this month — up from $30 billion at the time of its Series G in February.

Let that sink in. Anthropic added $17 billion in annual run-rate revenue in roughly 15 weeks. That’s not growth — that’s a firehose.

At $965B valuation against $47B run-rate revenue, we’re looking at a 20.5x revenue multiple. Aggressive? Yes. But when revenue is compounding at this rate, traditional valuation frameworks start to look quaint.


The Chip Partners — This Is New

Here’s the detail most coverage is glossing over: Micron, Samsung, and SK hynix joined as strategic infrastructure partners.

These aren’t venture investors. They’re the companies that make the memory, storage, and logic chips that power every AI data centre on the planet. Having them as partners — not just suppliers — signals that Anthropic is vertically integrating its supply chain relationships.

When we covered Anthropic’s SpaceX compute deal, the story was about compute capacity. The chip partnerships are about compute certainty — locking in the physical inputs that every AI company is fighting over.


10 Gigawatts of Compute

The round announcement also confirmed three massive compute deals:

  • 5GW with Amazon — AWS remains Anthropic’s primary cloud and training partner
  • 5GW with Google and Broadcom — next-generation TPU capacity
  • SpaceX GPU access — Colossus 1 and Colossus 2

Ten gigawatts. For context, that’s roughly the power consumption of a small country. Anthropic is now the first frontier model available on all three major clouds (AWS, Google Cloud, Azure), but AWS remains the primary training partner.

This is the real story beneath the funding numbers. The $65 billion isn’t going to model research alone — a huge chunk is going to the physical infrastructure that makes AI possible. When we wrote about the data centre land grab, it was still speculative. Now it’s confirmed: Anthropic is building at a scale that rivals national infrastructure projects.


The Valuation Trajectory

Let’s trace Anthropic’s valuation arc:

RoundDateValuationJump
Series GFeb 2026$380B
Pre-Series H reportsApr 2026$900B (rumoured)2.4x
Series H (closed)May 2026$965B2.5x from G

In three months, Anthropic’s valuation increased by $585 billion. That’s more than the GDP of New Zealand (roughly $400B). A private company added a whole New Zealand to its market cap in a single quarter.


What This Means for the AI Landscape

Anthropic is no longer the safe, careful alternative. At $965 billion, it’s the most valuable AI company on Earth. The safety-first branding that differentiated it from OpenAI now coexists with a valuation that demands aggressive growth. When your investors expect a 20x return, the pressure to ship fast and monetise hard is immense.

The hyperscaler entanglement deepens. Amazon and Google are now both investors and infrastructure providers. That’s a powerful moat — but it’s also a dependency. If either hyperscaler shifts strategy, Anthropic’s compute pipeline could tighten.

The IPO is inevitable. This is almost certainly Anthropic’s last private round. At $965B, there aren’t many private investors left who can write checks at this scale. The public markets are the only place left to go.

NZ gets further from the action. When we noted the concentration problem at $900B, it was already clear that AI capital was flowing to a tiny number of US companies. At $965B, the gravitational pull is even stronger. Infrastructure, talent, policy influence — it all concentrates where the money is.


🔍 The Bottom Line

Anthropic just closed the largest private funding round in AI history, and the numbers are staggering: $65 billion, $965 billion valuation, $47 billion run-rate revenue, 10GW of compute deals. The company that was founded as the “safe AI” lab is now the most valuable AI startup on Earth.

Whether safety-first principles and $965 billion valuations can coexist is the defining question of this era. The investors writing these checks are clearly betting they can. The rest of us will find out.


❓ Frequently Asked Questions

Q: What does this mean for NZ?

NZ-based organisations using Claude will benefit from improved capacity and reliability, but the concentration of AI power in US companies means local AI development gets comparatively less investment. NZ’s AI Blueprint refresh to 2030 needs to account for a world where a single US company is worth more than twice NZ’s GDP.

Q: How does this compare to OpenAI’s valuation?

Anthropic’s $965B post-money valuation surpasses OpenAI’s $852B, making Anthropic the most valuable AI startup. However, OpenAI’s consumer product (ChatGPT) still reaches more end users, while Anthropic is winning enterprise contracts.

Q: What will Anthropic do with $65 billion?

Compute infrastructure is the primary use. The 10GW of deals with Amazon, Google/Broadcom, and SpaceX require enormous capital. Anthropic will also invest in safety research, product development (Claude Code, Cowork), and expanding Claude’s availability across all major cloud platforms.


Sources

Sources: Anthropic, TechCrunch, OfficeChai