Nvidia has agreed to guarantee as much as US$105 billion in lease payments to help OpenAI secure a sprawling data centre in Ohio being developed by SoftBank-backed SB Energy, in one of the chipmaker’s largest infrastructure financing commitments.The chip giant will also invest US$1.5 billion in SB Energy and secure up to 8 gigawatts of AI computing capacity at the site, where the data centre developer will build, own and operate a campus for OpenAI under a 20-year lease, the companies said...