Microsoft’s absence from OpenAI’s Stargate announcement follows months of tension between the companies and signals a new era in which the longtime partners will be less reliant on each other. At a White House press conference,

Such announcements aren’t without political risks, as OpenAI learned when Trump adviser Elon Musk criticized the deal on the social network he owns.

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.