OpenAI appoints ex-Twitch boss as interim CEO; Altman joins Microsoft

By Stephanie Kelly, Jeffrey Dastin and Anna Tong

SAN FRANCISCO (Reuters) -OpenAI has appointed ex-Twitch boss Emmett Shear to lead the startup, replacing Sam Altman who will join the company's top backer Microsoft to lead a new advanced AI research team, the CEO of the software giant said late on Sunday.

"We look forward to getting to know Emmett Shear and OAI's new leadership team and working with them," Microsoft CEO Satya Nadella posted on social media platform X. He added Microsoft remains committed to its partnership with OpenAI.

Shear was named interim CEO, a person briefed on the appointment told Reuters.

The decision not to reinstate Altman as CEO of the company behind ChatGPT has confounded efforts by investors and employees of the firm to steady the ship by bringing him back after the board fired him on Friday, a surprise move that rocked the tech world.

They fear his abrupt sacking could lead to a mass exodus of talent and impact an upcoming $86 billion share sale.