In a United States court, OpenAI chief executive Sam Altman has rejected claims from fellow tech mogul Elon Musk that he betrayed the artificial intelligence company’s original vision. Tuesday marked the start of Altman’s testimony in a contentious trial unfolding in Oakland, California, between some of tech’s richest and most powerful titans. Recommended Stories list of 3 items list 1 of 3 Pentagon announces deal with seven AI companies for classified systems list 2 of 3 Microsoft, Google, xAI give US access to AI models for security testing list 3 of 3 SpaceX backs Anthropic with data centre deal amidst Musk’s OpenAI lawsuit end of list Musk, the wealthiest man in the world, has sued Altman and OpenAI president Greg Brockman on the basis that they “stole a charity” by shifting its purpose. He alleged that OpenAI’s leader persuaded him to invest $38bn, based on a goal of improving humanity, only to see the company pivot to a for-profit venture in 2019.…