Celestial AI

Celestial AI is a leading developer of optical interconnect technology designed to overcome the 'Memory Wall' and 'I/O Wall' in artificial intelligence and high-performance computing (HPC). The company's proprietary Photonic Fabric™ platform utilizes light instead of traditional copper-based electrical signals to move data between processors (XPUs) and memory (HBM/DDR), providing significant improvements in bandwidth, latency, and energy efficiency. For the pharmaceutical and biotechnology industries, Celestial AI's technology serves as a critical enabler for advanced R&D. By accelerating the training of large-scale generative AI models and improving the efficiency of data-intensive workloads such as molecular docking simulations and genomic analysis, the Photonic Fabric helps reduce the time and computational cost of drug discovery. In late 2025, the company entered a definitive agreement to be acquired by Marvell Technology for $3.25 billion, a move set to integrate its optical fabric into mainstream data center infrastructure.