Celestial AI, a leader in optical interconnect technology addressing the scalability demands of modern AI infrastructure, today announced the final close of its $255 million Series C1 funding, adding strategic investors VentureTech Alliance and Samsung Catalyst Fund in the round, with deep semiconductor and foundry partnerships. This latest investment brings the company's total funding to $520 million.

Celestial AI is the creator of the Photonic Fabric, an optical interconnect technology platform for AI computing systems. The Photonic Fabric provides the foundational technology for data center computing, networking and memory systems to enable advancements in AI with sustainable and profitable business models. Celestial AI's Photonic Fabric delivers a transformative leap in AI system performance and energy efficiency.