Reid Hoffman is an American internet entrepreneur, venture capitalist, podcaster, and author. Reid cofounded professional networking site LinkedIn in 2003 and is a partner at venture capital firm Greylock Partners, and a co-founder of Inflection AI. Hoffman was a founding investor in OpenAI, leaving this role in March 2023 after citing a desire to avoid conflicts of interest between his board seat at OpenAI, investments in Greylock Partners, and role as founder of Inflection AI. In 2016, Hoffman sold LinkedIn to Microsoft for $26.2 billion in cash and joined Microsoft's board. He is an investor in Airbnb, which went public in December 2020, and autonomous driving pioneer Aurora, which acquired Uber's self-driving unit. Hoffman is part of the so-called "PayPal Mafia," and was one of the first employees at the payment company that was later sold to eBay.