Sources: ChatGPT co-creator Shengjia Zhao threatened to quit Meta within days of joining and return to OpenAI; later, he was given the chief AI scientist title (Financial Times)

Financial Times:
Sources: ChatGPT co-creator Shengjia Zhao threatened to quit Meta within days of joining and return to OpenAI; later, he was given the chief AI scientist title  —  Longtime acolytes are sidelined as Big Tech chief directs biggest leadership reorganisation in two decades