In addition to the 4.5 gigawatts of capacity announced today, Oracle is responsible for building one of OpenAI’s Texas data center campuses. The site is expected to house up to 400,000 of Nvidia Corp.’s GB200 Grace Blackwell accelerators. Each chip features two Blackwell B200 graphics cards and a 72-core Grace central processing unit.

OpenAI announced Tuesday that it will develop 4.5 gigawatts of data center capacity in partnership with Oracle ORCL — confirming an expanded partnership between the two companies within the buzzy Stargate infrastructure initiative. Oracle stock was slightly lower Tuesday.