Grok, built by Musk's company xAI and integrated into his social media platform X, wrote in a widely shared post in French that gas chambers at the Auschwitz-Birkenau death camp were designed for "disinfection with Zyklon B against typhus" rather than for mass murder - language long associated with Holocaust denial. The Auschwitz Memorial highlighted the exchange on X, saying that the response distorted historical fact and violated the platform's rules.