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OpenAI considers mega data centre in Ohio backed by Nvidia

OpenAI is seeking to lease a 10-gigawatt AI data centre in the U.S. state of Ohio, a move that could rank among the largest single-site AI computing infrastructure investments if completed. Discussions are based on funding support from Nvidia. The proposed location is the former Portsmouth gas diffusion plant site in Pike County. OpenAI’s Stargate project has secured about 7 gigawatts across seven sites as of September 2025.