All 11 xAI cofounders have departed Musk's AI startup, including eight since January. The $250 billion company lost researchers like Jimmy Ba (Adam optimizer co-author) and DeepMind's Igor Babuschkin after SpaceX's acquisition. Musk admitted xAI "was not built right" and is rebuilding with product hires rather than research talent. Suggests organizational challenges that funding and compute infrastructure alone cannot resolve.

xAI Loses All 11 Cofounders as Musk Admits Startup Broke
Ross Nordeen walked out of xAI on Friday, the last of eleven cofounders to leave Elon Musk's AI startup since its founding. The company carries a $250 billion valuation and access to one of the largest GPU clusters on Earth. None of that was enough. The exodus accelerated after SpaceX acquired xAI i







