Nebius buys US AI inference startup Eigen AI in $643M deal

European AI infrastructure company Nebius has acquired a US startup which specialises in improving the performance of leading open-source AI models, it said today. Amsterdam-headquartered Nebius has acquired San Francisco-based Eigen AI for approximately $643m in cash and stock. Nebius, which is sometimes referred to as a neocloud, builds and operates data centres, packing them with GPUs, then offers access to these data centres to AI and enterprise companies needing compute power, as well as of