OpenAI and Microsoft have hit back at Elon Musk’s criticism of Stargate, the new $500bn artificial intelligence infrastructure project hailed by Donald Trump as a “resounding declaration of confidence in America’s potential under a new president”.

Microsoft will no longer be the exclusive provider of new cloud computing capacity to OpenAI — a new twist in their relationship that clears the way for OpenAI to work with Oracle and others on the $500 billion Stargate AI project announced by the companies Tuesday with President Trump at the White House.

Under the Trump administration, OpenAI and other members of the tech sector are making a push to establish AI dominance in the U.S.