Microsoft rejects multibillion-dollar AI deal with UK's Nscale, FT reports

Microsoft decided not to use an optional expansion in its existing agreement with Nscale for computing power at a Texas data center. The potential expansion could have more than doubled the size of the current arrangement and been worth tens of billions of dollars to Nscale.

The decision concerns only the unused expansion option. It does not cancel or reduce Microsoft's existing Texas contract with Nscale. The source said Microsoft made the decision several months ago, before Nscale filed for its IPO in September.

Nscale is therefore keeping its current Texas business with Microsoft while seeking other customers for remaining capacity. The company was already discussing that capacity with several major customers. The decision also came after Microsoft withdrew from anchoring Nscale's Loughton project because of power connection delays.

In a commercial contract, an option gives one party the right to take an additional step later, under agreed terms, without forcing that party to do so. It provides flexibility when future demand or timing is uncertain. The party can exercise the option or let it expire.

In this case, Microsoft's option concerned additional computing power at an Nscale data center in Texas. Exercising it would have expanded the existing agreement by more than double. The Financial Times reported that the possible extension could have been worth tens of billions of dollars for Nscale.

Microsoft chose not to exercise the option. That means the extra capacity will not be added under this planned expansion, but the original Texas agreement continues. Nscale said its disclosed total contract value, about $103 billion, was not affected by the decision.

The potential Texas expansion had no exact published price, but it was described as worth tens of billions of dollars to Nscale. It would have more than doubled Microsoft's existing Texas agreement for rented computing power. Microsoft decided not to take that additional option.

Nscale's IPO filing reported statements of work with Microsoft worth up to about $43.8 billion through December 2033. That figure excluded optional extensions. The filing also disclosed a total contract value of about $103 billion, which includes the broader reported relationship.

Separately, the companies agreed last year for Nscale to deploy around 200,000 Nvidia AI chips under an expanded Microsoft arrangement across data centers in Europe and the United States. These figures describe different parts of the relationship, so they should not be treated as one single contract amount.

Microsoft withdrew from anchoring Nscale's planned flagship data center in Loughton, Essex, because the project faced delays in connecting to power. Those delays pushed the expected supply date into the 2030s, making the project unable to meet Microsoft's planned timing.

An anchor customer typically gives a major project a large, predictable commitment. Microsoft had been expected to anchor the Loughton development, but the delayed power connection changed that arrangement. The article does not state that Microsoft ended its separate Texas contract for the same reason.

The Loughton withdrawal happened weeks before the report about Microsoft's Texas option. Together, the events show that Microsoft is reducing planned commitments to some Nscale capacity while retaining its existing Texas agreement. Nscale must now address the Loughton setback and find customers for available capacity elsewhere.

Microsoft's decision not to exercise the Texas option does not change the existing Texas contract. The source specifically said that Microsoft's current agreement with Nscale remains unaffected. Nscale can continue providing the computing capacity already covered by that contract.

The decision also does not reduce Nscale's disclosed total contract value of about $103 billion. Nscale reported that figure in its IPO filing. The filing separately described statements of work with Microsoft worth up to about $43.8 billion through December 2033, excluding optional extensions.

The immediate consequence is lost potential growth rather than cancellation of existing business. Nscale will not receive the extra Texas commitment that could have been worth tens of billions of dollars. However, it was already discussing remaining Texas capacity with several major customers, creating a possible route to replace unused demand.

If Microsoft does not use the remaining Texas capacity, Nscale can seek other buyers for that AI computing power. The source said Nscale was already in discussions with several major customers about the rest of the capacity in Texas.

One named possibility is Paradox, the company behind Paradox. Reuters and others reported that Nscale was in talks to sell Paradox AI computing power in a new deal that could be worth about $45 billion. The article does not say that this deal has been completed.

These discussions could help Nscale fill capacity that Microsoft will not take through the unused expansion option. They also show why data center capacity can be commercially valuable even when one customer changes plans. For now, the article confirms talks and prospective value, not a finalized replacement contract.

The article does not define an AI data center. In general, it is a facility containing powerful computers, networking, electricity, and cooling systems designed to run artificial-intelligence workloads. Companies rent access to these facilities instead of building all that infrastructure themselves.

Specialized Nvidia chips are widely used for AI computing because they can perform many calculations at the same time. AI systems repeatedly process large amounts of data while training or generating results. A data center combines many chips so customers can handle larger models, more users, or faster workloads.

The article gives a concrete scale: Nscale agreed to deploy around 200,000 Nvidia AI chips under an expanded Microsoft arrangement across data centers in Europe and the United States. That scale helps explain why AI capacity has become a major commercial asset and why unused Texas capacity could attract other large customers.