OpenAI CEO Sam Altman speaks to media following a Q&A at the OpenAI data center in Abilene, Texas, U.S., Sept. 23, 2025. Shelby Tauber | ReutersNvidia's massive investment in OpenAI, announced earlier this week, will put billions of dollars into the coffers of the artificial intelligence startup to use as it sees fit. But most of the money will go towards use of Nvidia's cutting-edge chips.The agreement between the two companies was big on numbers but thin on specifics. They said the investment would re ...