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Sam Altman: The optimistic survivalist whose AI bot could take over the world

With ChatGPT on everyone’s lips, and despite a call from tech experts for a pause on training powerful AI models, the co-founder and chief executive of parent company OpenAI knows the smart money is on artificial intelligence

OpenAI, the company behind ChatGPT, is on its way to becoming one of the most highly-valued tech firms in the world. But one person who won’t benefit from its rapid rise in valuation is Sam Altman, its co-founder and chief executive.

Altman, in an unusual move, took the decision not to take equity in the start-up at the time it became a for-profit business in 2019.

This was because OpenAI was not set up originally ...