NVIDIA is reportedly in talks to provide about $250 billion in financing guarantees for OpenAI as part of a massive 10-gigawatt data-center project in southern Ohio, with the total cost potentially exceeding $500 billion. The guarantees would cover the data-center lease and construction debt, enabling OpenAI to secure favorable financing even without an investment-grade credit rating, while separate financing discussions could total up to $350 billion for NVIDIA chips. The project, developed by a SoftBank energy subsidiary, would place OpenAI closer to owning its own infrastructure and comes amid broader AI infrastructure funding activity, including interest from Anthropic, Microsoft, and Google. The power for the site is reportedly controlled by the U.S. government and funded in part by Japan, with U.S. Commerce Secretary Howard Lutnick involved in access decisions. Some market observers and commentators questioned the financing structure and SoftBank’s involvement, and the reporting has drawn skepticism as Reuters could not independently verify the details.