A day after agreeing to a $100 billion investment from the chipmaker Nvidia, OpenAI said it had inked deals with two other tech giants to build five new data centers across the United States.

OpenAI, an artificial intelligence start-up, said on Tuesday that it would work with the Japanese conglomerate SoftBank and the cloud computing company Oracle to build computing facilities in Lordstown, Ohio; Milam County, Texas; Shackelford, Texas; Doña Ana County, N.M.; and a not-yet-named site in the Midwest.

The new data centers are part of a plan that the three companies unveiled in January with President Trump at the White House. Under the plan, called the Stargate Project, the companies intend to spend $500 billion on new facilities for building A.I. technologies and delivering them to consumers and businesses.

With Tuesday’s announcement, OpenAI said that it now had agreements in place to build more than $400 billion in data center infrastructure. It must negotiate additional deals to reach its goal of $500 billion.

Oracle will pay for and oversee the construction of three of the new data centers. OpenAI will then purchase computing power from Oracle. Oracle’s co-chief executive Clay Magouyrk said that the cloud computing giant would pay for the construction of these facilities partly by exploring new kinds of financial deals with various partners, technology providers and other investors.

“It is a combination of working with all the right partners and providers to bring all of their capital bear as well as interesting new corporate structures and interesting new ways of doing financing,” he said.