OpenAI was the company that signed a $30 billion per year deal with Oracle for data center services, disclosed last month, The Wall Street Journal reported on Monday. Now, OpenAI CEO Sam Altman has confirmed the details of the contract (but not the dollar amount) in an X post on Tuesday and in a company blog post.

OpenAI and Oracle will develop another 4.5 gigawatts of data center capacity, expanding a tie-up that has promised hundreds of billions of dollars in infrastructure investment to keep the U.S. ahead in the global artificial intelligence race.

On Tuesday, OpenAI announced a partnership with Oracle to develop 4.5 gigawatts of additional data center capacity for its Stargate AI infrastructure platform in the US. The expansion, which TechCrunch reports is part of a $30 billion-per-year deal between OpenAI and Oracle,