Nvidia was reported to be in talks to provide a roughly $250 billion backstop for OpenAI, a financing promise that could help underwrite one of the biggest AI infrastructure projects now being discussed. The guarantees would support a 10-gigawatt buildout in southern Ohio and, if completed, would make it easier for the project’s backers to borrow on better terms.
That is why the report moved quickly into the market late Sunday. Oracle Corp., one of OpenAI’s largest new customers, rose 1.4% in overnight trading after the news, even though the company has already been leaning harder on debt to fund new AI capacity tied to that business.
The scale of the reported arrangement is the point. A backstop does not mean Nvidia would hand over $250 billion in cash at once; in practice, it would mean standing behind the financing so lenders see less risk and can price debt more cheaply. That matters because OpenAI is an unprofitable private company with no investment-grade credit rating, and the project is being developed by a unit of SoftBank in southern Ohio under a structure that depends on outside confidence.
The power for the site is controlled by the U.S. government and funded separately by Japan under a recent trade deal, and Howard Lutnick was involved in deciding who will receive access to it. OpenAI is among the companies that have shown the most interest in the site, while Anthropic, Microsoft and Google have also spoken to Lutnick about it in recent weeks. The setup helps explain why the reported financing is being watched so closely: access to power is the scarce resource, and the lease financing is built around who can credibly commit to using it.
The friction is in the balance sheet. Oracle has been under pressure because investors have been scrutinizing the debt it has taken on to build data-center capacity for cloud contracts with OpenAI. S&P Global Ratings downgraded Oracle to BBB- on July 9, and its five-year credit default swaps have more than quadrupled since mid-2025 to a record about 203 basis points. Oracle shares were already down 54% from their 2026 high on June 1 and 65% from their peak last September before the overnight bounce, which shows how fast enthusiasm for AI spending can collide with the cost of funding it.
For now, the market is treating the report as a sign that the financing chain around OpenAI’s expansion could get stronger, not looser. Whether Nvidia and OpenAI actually turn the talks into a final agreement will decide whether this becomes a huge commitment or just another reminder of how expensive the AI buildout has become.
