Microsoft has reportedly rejected an option to more than double the computing power it rents from Nscale at a Texas data center, walking away from a potential deal worth tens of billions of dollars, according to reports neither company has confirmed. The decision follows Microsoft’s pullout from Nscale’s flagship project in England weeks earlier, and it lands as the biggest cloud providers face growing questions about how much debt their AI buildout is piling up.
What Microsoft turned down
Under the arrangement, Microsoft rents computing power from Nscale, a data-center company backed by Nvidia, at a site in Texas. The option would have let Microsoft expand that agreement to more than twice its size, adding capacity for the AI workloads that dominate the company’s spending. The Financial Times, citing people familiar with the matter, reported the rejection on Thursday.
Neither Microsoft nor Nscale has confirmed the decision, and both companies declined to comment when asked outside business hours. Reuters, which reported the Financial Times account, said it could not immediately verify the report. That leaves the story resting on the newspaper’s sources for now, and the terms of the original Texas agreement have not been disclosed either.
The second pullback in weeks
The Texas decision is the second time Microsoft has stepped back from a deal with Nscale in recent weeks. Earlier, the company pulled out of an agreement to anchor Nscale’s flagship data center in Loughton, Essex, after power connection delays pushed the project’s expected supply date into the 2030s. Two walkaways in quick succession suggest a pattern, not a one-off.
Nscale filed for a United States initial public offering in September, with Microsoft and Anthropic expected to be among its biggest customers. The company has also been in talks to sell computing power to Anthropic in a deal that could be worth about $45 billion, according to Reuters reporting last month.
Losing Microsoft’s expansion does not end Nscale’s business, but it removes one of the largest checks the company was counting on. The talks with Anthropic, which could see Nvidia back billions in credit support for an Anthropic data center, would still leave Nscale with a marquee customer if they close.
Our read: discipline is the new AI strategy
Microsoft’s move fits a wider turn in how the biggest AI spenders talk about money. For two years the message was speed at any cost, with data centers, chips and power bought as fast as they could be signed. Now the same companies are auditing which commitments they actually need, and walking away from the ones they do not.
The timing is no accident. Credit analysts have begun warning that the AI buildout is being funded with debt at a scale the industry has not carried before, and Moody’s warned in October that the trillion-dollar buildout has a debt problem. A company that can refuse tens of billions in capacity expects investors to start asking harder questions.
There is also a power story underneath the money story. The Essex pullout was blamed on grid connections slipping into the 2030s, and power, not chips, is now the binding constraint on new data centers in several markets. Microsoft may simply have decided that capacity it cannot power on time is not worth paying for, whatever the headline price.
What to watch next is whether other buyers follow Microsoft’s lead. If more options go unexercised, Nscale and its rivals will face a funding squeeze as they try to list shares and borrow for construction. The market will also watch the Anthropic talks, where a $45 billion deal would replace the Microsoft capacity that just walked out the door.
Why It Matters
If Microsoft is passing on tens of billions in AI capacity, the buildout’s next phase will be judged on returns, not announcements. Suppliers that counted on endless expansion from the biggest buyers will have to prove their projects can pay, and Amazon has already arranged an $80 billion secured loan facility to fund its own hardware purchases.
For Nscale, the stakes are immediate. A company heading for a public listing wants its largest customers locked in, not walking away, and a second rejection hands investors a question to ask. For the wider industry, the message is that even the deepest pockets are now choosing which AI bets to fund — and which to leave on the table.
Background
Microsoft is one of the biggest buyers of AI computing power, renting capacity from providers like Nscale while also building its own data centers. The industry’s infrastructure spending has drawn scrutiny as borrowing climbs, with reports that big tech’s AI bill is hiding in the footnotes and Amazon arranging an $80 billion secured loan facility for hardware.
Source: Reuters report
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