SoftBank Group Corp. is in discussions to invest as much as $25 billion in OpenAI in a move that would potentially make it the AI startup’s biggest backer, the Financial Times reported.

A new investment from the Japanese conglomerate would be separate from the $100 billion tied to a project announced at the White House last week.

SoftBank is in talks to invest as much as $25bn into OpenAI, in a deal that would make it the ChatGPT maker’s biggest financial backer, as the pair partner on a huge new artificial intelligence infrastructure project.