Sacking, revolt, return: how crisis at OpenAI over Sam Altman unfolded

Firing of the CEO behind ChatGPT company sent shock waves through Silicon Valley - only for him to be reinstated days later

When Sam Altman, the chief executive of OpenAI, took to the stage in San Francisco nine days ago he hinted at another significant development in the world of artificial intelligence.

Four times now in the history of OpenAI, the most recent time was just in the last couple weeks, I've gotten to be in the room, when we sort of push the veil of ignorance back and the frontier of discovery forward, and getting to do that is the professional honour of a lifetime," he told the Asia-Pacific Economic Cooperation (Apec) summit.