Nvidia has agreed to backstop as much as $105 billion in financing for a new OpenAI data-centre campus in Ohio — a site that, once built, will run exclusively on Nvidia chips. Bloomberg and CNBC reported the deal on 17 August. It is the largest single commitment yet in a partnership that is starting to look less like a supplier relationship and more like a closed loop.

The shape of the deal

The campus — the PORTS-Pike Technology Campus — will be built, owned and operated by SB Energy, a SoftBank unit, under a 20-year lease to OpenAI. Nvidia provides the credit support for the site's land, power and shell, alongside a $1.5 billion equity stake in SB Energy itself. The first phase covers 4.25 gigawatts of capacity, with the campus planned to reach roughly 8 gigawatts. In return, Nvidia becomes the exclusive compute provider at the site — OpenAI filling it with Nvidia hardware on the order of 1.5 million GPUs, which the reporting puts at $150–200 billion of potential Nvidia revenue across a chip generation.

Read that back slowly. Nvidia underwrites the financing for the building. OpenAI fills the building with Nvidia's chips. The guarantor's return is the tenant's purchase order.

Why it matters

This is the clearest sign yet that the capital driving the AI build-out is increasingly circular. It is not the first lap: the Ohio deal builds on the up-to-$100 billion framework the two companies struck back in September 2025. The same few balance sheets — Nvidia, OpenAI, SoftBank, and the hyperscalers behind them — now sit on multiple sides of the same transactions.

Vendor financing is not new, and none of this is illegitimate on its own. Demand for compute is real, and a 20-year lease is a real obligation. But when a supplier underwrites its own customer's ability to buy from it, two things happen at once. Reported "growth" starts to include money moving in a circle rather than arriving from outside it. And risk concentrates: if one link in the loop stumbles, the exposure does not stay contained to that link, because the counterparties are each other.

The number to watch

The figure that matters is not the $105 billion headline — it is how much of the sector's spending is now financed by the people it is spent with. A year ago that was a framework agreement. Today it is a specific building with a specific chip count and a two-decade lease. The loop is getting tighter, and it is getting harder to tell demand from the financing that manufactures it.

For readers and businesses trying to gauge how durable the AI boom is, that distinction is the whole game. A market funded by outside capital betting on future demand is one thing. A market increasingly funded by its own suppliers is another — and it is worth knowing which one you are looking at.