Lumai

Lumai Limited is a deep-tech company and University of Oxford spinout focused on advancing artificial intelligence infrastructure through fully optical computing.

Founded in late 2021, Lumai aims to overcome the limitations of traditional silicon-based hardware by utilizing photons instead of electrons for computation. This innovative approach allows Lumai to deliver AI processors that achieve up to 50 times higher performance and 90% lower energy consumption compared to conventional GPU architectures. The company's flagship product, the Lumai Iris Inference Server, launched in April 2026, is designed for real-time inference of billion-parameter Large Language Models. Lumai primarily operates as a B2B hardware and technology licensing company, selling optical inference servers and providing technology licensing, software tools, and consulting services. Targeting data centers, cloud computing providers, and enterprise AI users, Lumai is positioned to support high-performance computing needs while promoting energy efficiency and sustainability in AI deployment.