Sam Altman, former CEO of OpenAI, posted a photo at the company's HQ after being dismissed by the board, causing internal upheaval. Altman, a co-founder, helped launch OpenAI and is influential in the AI space. Reports suggest employees and investors, including Microsoft, advocated for his reinstatement. Despite initial reports of CTO Mira Murati as interim CEO, Emmett Shear is expected to take the role. Altman's dismissal was attributed to communication issues with the board, with concerns about a potential rival company and talent loss. OpenAI, valued highly with ChatGPT's success, faces uncertainty following Altman's exit. His ousting sparked an outpouring of support from Silicon Valley bosses, including former Google chief executive Eric Schmidt who called Mr Altman "a hero of mine" and said that he had "changed our collective world forever".