And then there were none: Musk's last xAI cofounder is out Elon Musk has said xAI is being "rebuilt from the foundations up." Adrees Latif/Reuters Elon Musk started xAI with 11 cofounders in 2023. The last remaining one, Ross Nordeen, has now exited the company. Musk recently said xAI was not built right and that he's reorganizing it. The last of Elon Musk's original team of xAI cofounders has cleared out.Ross Nordeen, one of the 11 who helped build the company alongside Elon Musk, left the comp...