Nvidia considers $250B backstop for OpenAI data center in Ohio

Nvidia, the semiconductor company that designs AI processors, is in talks to provide roughly $250 billion（約40兆円） in financial backing for a large data center project led by OpenAI. According to a Wall Street Journal report, the facility is being developed by a SoftBank energy subsidiary in southern Ohio and would operate at 10 gigawatts of capacity.

The scale of the undertaking is substantial. The full project could cost more than $500 billion（約80兆円） when including the AI chips to be installed inside the data centers, making it the largest announced data center development to date. Nvidia's proposed financial backstop would help OpenAI by making it easier to secure both the financing needed and long-term lease commitments for the facility.

The arrangement would also deepen Nvidia's financial exposure to its customers. Rather than simply selling chips to OpenAI or other data center operators, Nvidia would assume some responsibility for the success of the infrastructure investment itself. The discussions underscore how much capital is required to expand advanced computing infrastructure and how closely integrated chip suppliers, AI model developers, and data center investors have become in the AI era.

However, the deal remains in early stages. No final agreement has been disclosed. Investors are watching for confirmation of the financing terms, clarity on Nvidia's potential obligations, and timing for when construction of the Ohio project might begin.

The talks between Nvidia and OpenAI signal the enormous capital appetite required to build next-generation AI infrastructure at scale. A 10-gigawatt data center facility with a total project cost exceeding $500 billion（約80兆円） represents a level of investment that traditional corporate finance and venture capital alone may struggle to support, hence the need for a backstop guarantee from Nvidia.

Nvidia's potential role as financial guarantor reflects a broader structural shift in the AI industry. Rather than remaining purely as a chip supplier, Nvidia would deepen its stake in OpenAI's success by helping secure the financing and lease terms the data center requires. This arrangement also illustrates how chip manufacturers, AI model developers, and data center operators have become increasingly interdependent. Nvidia benefits from the certainty that its processors will be deployed and used at scale; OpenAI gains access to capital and operational stability; and the SoftBank subsidiary secures a major tenant for its facility.

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