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.

Stargate: Analysts have noted that Microsoft has become less willing to spend even more money financing the computing power OpenAI requires to retain a lead in AI.