Nscale in talks to supply Anthropic with $45 billion of computing power

Nscale, the UK-based AI infrastructure provider, is in talks to provide about $45 billion of computing power to Anthropic, according to a report published on 19 October 2026. The nscale anthropic computing deal would rank among the largest AI compute contracts to date.

For markets and investors, the talks show how much capital is flowing into AI infrastructure just as Nscale prepares a possible initial public offering. They also arrive alongside a reported setback in the United Kingdom, where Microsoft is said to have withdrawn from a data-center agreement over power-supply issues.

What happened

The arrangement would see Anthropic pay Nscale for access to computing capacity. A report published on 19 October 2026 carried the headline that Anthropic is to pay Nscale $45 billion for computing, while a separate report the same day described the two companies as being in talks for a $45 billion cloud computing deal.

The idea is not new. An earlier report dated 26 August 2026 said Anthropic would rent AI computing power from Nscale for $45 billion, citing a source. The October coverage describes the discussions as ongoing negotiations rather than a finished contract, so the exact status of the earlier figure and the new one is not fully clear from the reports.

A further report published on 20 October 2026 says Anthropic is negotiating a second potential $45 billion computing deal with Nscale. That agreement would centre on a 460MW data centre in West Virginia, and the report notes that both companies are pursuing IPO ambitions.

What are the key figures?

• About $45 billion: the value of the computing power Anthropic would obtain from Nscale, as reported on 19 October 2026.
• A second potential $45 billion: the value of the separate negotiation reported on 20 October 2026.
• 460MW: the capacity of the West Virginia data centre linked to the second potential deal, per the report of 20 October 2026.
• About $103 billion: total contracted revenue Nscale told prospective investors it had, according to documents cited in early September 2026.
• $14.6 billion: the valuation Nscale reached when Nvidia backed the company, according to earlier coverage.
• $1.1 billion: the size of an Nvidia-backed funding round Nscale raised, according to earlier coverage.

Who is Nscale and why is it in the spotlight?

Nscale is a British company that builds and operates AI data centers and rents out GPU-based computing capacity. It is part of a group of so-called neocloud providers that supply compute to AI developers.

The company has drawn attention from Nvidia, which backed it. Coverage of its funding described a $1.1 billion round backed by Nvidia and a later valuation of $14.6 billion. One report described the startup as having come out of nowhere and as impressing Nvidia chief executive Jensen Huang.

On 2 September 2026, a report citing documents shared with investors said Nscale was telling prospective investors it had about $103 billion of total contracted revenue. That report said an initial public offering could come as soon as that month. No listing had been confirmed in the material available.

The scale of that contracted revenue figure, set against the valuation reached in the Nvidia-backed round, explains why a single customer such as Anthropic draws so much attention. Any new contract would feed directly into the numbers shown to prospective investors.

How does the Microsoft withdrawal fit in?

Microsoft has pulled out of a UK data-center deal with Nscale over power-supply issues, according to reports on 18 October 2026 and 19 October 2026. The first, citing the Telegraph, covered the withdrawal itself; the latter described it as a setback for the AI infrastructure company as it prepares to go public.

The episode highlights a practical constraint for the sector: access to electricity. Data centers built for AI workloads draw heavy power, and a project that cannot secure supply cannot deliver the capacity a customer has paid for.

The reports do not say how the withdrawal affects the contracted revenue figure Nscale gave investors, and the material available does not quantify the size of the cancelled UK arrangement.

Why it matters

The potential Anthropic contract matters because of its scale and its timing. A $45 billion commitment would make Anthropic one of the largest single customers of a neocloud operator, and it would add to the contracted revenue Nscale can show prospective investors.

It also reflects the intense demand for compute among AI developers. One report on 20 October 2026 said OpenAI is seeking $30 billion at a $1.4 trillion valuation ahead of Anthropic's expected IPO, while noting AI stock volatility and investor concerns clouding fundraising plans. That context shows how heavily the leading AI labs are tapping capital markets.

For Nscale, a large anchor customer supports its IPO story. The timing is notable: the news of the Anthropic talks followed within a day of the report on Microsoft's withdrawal, giving investors one large prospective contract and one lost project to weigh at the same time.

What are the risks and open questions?

The principal uncertainty is that the deal is still described as being in talks. Terms, timing and structure could change, and neither company's confirmation is included in the material available.

Power supply is a second risk, as the Microsoft case shows. A 460MW site in West Virginia would require substantial and reliable electricity, and delivery depends on construction and grid access.

A third question is market conditions. The report on OpenAI's fundraising points to AI stock volatility and investor concerns, which could weigh on the appetite for new AI-related listings, including those of Nscale and Anthropic.

A fourth is clarity. Two reports speak of $45 billion deals, one in August and one on 20 October for a second agreement, and the material does not reconcile how they relate to the figure reported on 19 October or to the $103 billion of contracted revenue.

What to watch next

The reports name no firm dates, but several developments will indicate where the talks lead.

• Whether Nscale and Anthropic confirm a signed contract and publish its terms.
• Whether the second potential $45 billion deal for the 460MW West Virginia data centre advances.
• Whether Nscale files for and launches its IPO, which a report in early September said could come as soon as that month.
• Whether Anthropic's expected IPO and OpenAI's $30 billion fundraising proceed as reported.
• Whether further detail emerges on the cancelled Microsoft arrangement and how Nscale addresses power supply at its sites.