The startup’s technology transmits light through a vacuum chamber rather than traditional glass, cutting latency by 30%. CEO Jason Eisenholz notes that while standard fiber takes five microseconds to travel one kilometer, his hollow-core alternative reduces that to 3.5 microseconds. As AI clusters outgrow single buildings and sprawl across massive campuses, this microsecond advantage effectively allows developers to span 30% larger distances without hitting performance bottlenecks.
Relativity Networks Secures $22M to Accelerate Data Center Connectivity
Data center developers face a $4 trillion expansion challenge, constrained by power grids and geography. Relativity Networks is betting that hollow-core fiber can rewrite these physical limitations, announcing $22 million in new funding to bring light-speed transmission to hyperscale campuses that must operate as a single, synchronized machine.
Relativity Networks secured the funding from Rhapsody Venture Partners, Bell Ventures Inc., and Faster Than Glass LLC. Beyond the investment, the company confirmed a $40 million follow-on order from an unnamed hyperscaler. For Eisenholz, the industry is entering a shift where compute and internal networking are no longer the only priorities; the third era of AI development is fundamentally about optimizing geography.
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