New AI compute startup raises funds to challenge Nvidia

London-based AI software startup Callosum has raised $10.25 million in funding to tackle Nvidia’s dominance in AI data center workloads. Founded by two Cambridge-trained neuroscientists, the company aims to rethink how AI compute is orchestrated and delivered. The investment, led by early-stage European backers, will support development of alternatives to entrenched GPU-centric models. This move highlights growing investor interest in more open, flexible AI infrastructure as demand for compute continues to surge.