Sam Altman, chief executive officer of OpenAI Inc., during a media tour of the Stargate AI data center in Abilene, Texas, US, on Tuesday, Sept. 23, 2025. Kyle Grillot | Bloomberg | Getty ImagesOpenAI on Monday said the U.S. needs to substantially ramp up its investment in new energy capacity if it wants to stay ahead of China in the race to develop artificial intelligence.The startup has been inking deals for ambitious infrastructure buildouts in recent months that will require massive amounts o...