NVIDIA's Spectrum-6 Signals the AI Bottleneck Has Moved to the Network

NVIDIA introduced Spectrum-6, a next-generation Ethernet switch for its Vera Rubin platform, with early adopters including CoreWeave, Microsoft, Nebius, SpaceXAI, and Tesla.

NVIDIA's latest announcement is not about a faster chip — it's about the wires between the chips. As reported by @PhotonCap, the company introduced Spectrum-6, "its next-generation Ethernet switch for the Vera Rubin platform," with early adopters including CoreWeave, Microsoft, Nebius, SpaceXAI, and Tesla. The lineup of adopters reads like a who's-who of gigascale cluster operators.

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