Anthropic’s $45B Nscale Deal: It Inherited Microsoft’s Old Lease

Anthropic will pay Nscale $45 billion over six years for 460MW at the neocloud's West Virginia campus, Bloomberg reported August 27, 2026 — the same capacity Microsoft reportedly walked away…

Anthropic’s $45 billion, six-year lease for 460MW of Nvidia Vera Rubin capacity at Nscale’s Monarch campus in West Virginia, reported by Bloomberg on August 27, 2026, is notable less for its size than for its provenance: according to TradingKey, this is the same building Microsoft signed a letter of intent to lease back in March, before quietly exiting the project this summer. Anthropic stepped into the gap. That detail matters more than the headline figure, because it means Anthropic isn’t just buying scarce power and chips — it’s absorbing capacity a hyperscaler decided it didn’t want.

The mechanism underneath the deal is a financing story as much as a compute story. Nscale is reportedly preparing a US IPO, potentially as early as next month, and has disclosed roughly $51 billion in cumulative contracted revenue to prospective investors, per TradingKey — against a planned $71 billion buildout of which some $47 billion is earmarked just for chip purchases. In other words, Anthropic’s lease payments are the collateral Nscale is showing Wall Street to justify spending on Nvidia silicon it doesn’t yet own. Anthropic’s signature is doing double duty: securing compute and underwriting someone else’s IPO pitch.

A backlog that outruns the balance sheet

Zoom out and the Nscale deal is one node in a compute-acquisition spree that increasingly runs through structured finance rather than cash. Anthropic has committed to more than 10GW of cloud-provider capacity including a $200 billion Google agreement, signed a $19 billion 20-year lease with TeraWulf in Kentucky and a $9 billion 20-year deal with Riot Platforms in Texas, and — according to Reuters reporting cited by Yellow.com — has more than a dozen additional letters of intent for over 1GW of US data center capacity. Executives are reportedly asking Google to financially guarantee those lease payments, with Apollo and Blackstone supplying private credit through special-purpose vehicles, the same structure already used for a $35 billion package backing Anthropic’s Google-chip leases across five sites.

Anthropic’s IPO story is being built on a stack of leases, guarantees, and vendor credit vehicles that don’t show up as debt on its own books but absolutely function as debt-shaped obligations someone will have to service.

None of this is confirmed by Nscale directly — DCD noted it had contacted the company and gotten no response as of publication. What would change the read: confirmation of the actual contract terms from Nscale or Anthropic, disclosure in Anthropic’s confidential IPO filing of how much of its $200 billion-plus compute backlog is structured as guaranteed debt versus discretionary spend, and whether other hyperscalers follow Microsoft’s pattern of signing letters of intent for AI campuses and then quietly stepping back before financial close.

As reported by Bloomberg and citing people familiar with the agreement, Anthropic will lease 460MW of capacity for a period of six years from Nscale's campus in West Virginia. The contract will cover Nvidia Vera Rubin AI chips at the site, which are expected to come online late next year.

Datacenter Dynamics

Read the full story at Datacenter Dynamics →

The Data Commenter, in your inbox

Data markets, alt data, and the AI training-data economy. No spam, unsubscribe anytime.

Discussion lives in the inline notes attached to article passages.