A composite image of Sam Altman and Satya Nadella
OpenAI CEO Sam Altman (left) and Microsoft CEO Satya Nadella.

Former OpenAI CEO Sam Altman is joining Microsoft.

Microsoft CEO Satya Nadella announced the move on X, adding both Altman and former president Greg Brockman to his company's ranks.

"We're extremely excited to share the news that Sam Altman and Greg Brockman, together with colleagues, will be joining Microsoft to lead a new advanced AI research team," Nadella said. "We look forward to moving quickly to provide them with the resources needed for their success."

In the post, Nadella also said the company remained committed to its partnership with OpenAI and looked forward "to getting to know Emmett Shear and OAI's new leadership team and working with them."