What Celestial AI does
Celestial AI (Celestial AI Inc.) developed Photonic Fabric™ technology for high-bandwidth, low-latency optical connectivity to support “scale-up” AI cluster architectures—connecting AI processors (XPUs) and memory within and across data-center racks. The company’s product strategy emphasized optical scale-up interconnect, including connectivity and switching elements, intended to address data-movement bottlenecks (bandwidth, latency, and energy) that become increasingly limiting as cluster sizes grow.
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In 2026, Marvell completed its previously announced acquisition of Celestial AI, bringing Photonic Fabric into Marvell’s broader data-center connectivity roadmap.