Microsoft hires OpenAI founder Sam Altman after being ousted

The new head of ChatGPT maker OpenAI said Monday that he would launch an investigation into the firing of co-founder Sam Altman and work to reform the company's management following a corporate shakeup that shocked the artificial intelligence world. The developments come after a weekend of drama and speculation about how the power dynamics would shake out at OpenAI, whose chatbot kicked off the generative AI craze by producing human-like text, images, video and music.