On March 6, 2026, OpenAI reposted a message from Sachin Katti saying construction is underway in Port Washington, Wisconsin. The post turns OpenAI’s previously announced Stargate and partner-led compute strategy into a visible on-the-ground build milestone.
Greg Brockman posted that the first steel beams are now up at the Stargate site in Milam County, Texas. The update also names SoftBank and SB Energy as project partners.
OpenAI and SoftBank Group said they are investing $1 billion in SB Energy, with OpenAI signing a 1.2 GW lease for initial data center buildout. The announcement ties the deal to Stargate and positions SB Energy as both an infrastructure partner and OpenAI customer.