Former CEO of the world's largest video streaming company, Twitch, Emmett Shear has taken on the role of CEO at OpenAI. The crisis at OpenAI has deepened following support for former leader Sam Altman from employees and investors. Shear faces challenges with employee departures and the impact of Altman's plan to launch an AI semiconductor company. OpenAI is experiencing fierce competition and future growth challenges from companies like Anthropic, Alphabet, and Elon Musk.