OpenAI's billionaire CEO Sam Altman and his husband Oliver Mulherin have signed the 'Giving Pledge' to donate most of their wealth. The Giving Pledge was established in 2010 by Bill Gates, Melinda French Gates and Warren Buffett. Before building OpenAI, Sam was President of startup accelerator Y Combinator from 2014-2019. Oliver is a technology investor who previously worked at Meta.