MGX is a state-backed AI investment vehicle jointly owned by Abu Dhabi's G42 and Mubadala Investment Company that focuses specifically on responsible development of frontier and general-purpose AI rather than operating as a traditional venture fund. The fund plays a hybrid role as both capital provider and geopolitical tool for the UAE, co-leading mega-rounds like Anthropic's $30B funding and building large physical AI infrastructure projects across continents while operating under regulatory frameworks for sensitive AI and data assets.