Oracle announces an unprecedented 18 zettaFLOPS AI infrastructure rollout using 800,000 Nvidia Blackwell and 50,000 AMD MI450X GPUs, marking one of history's largest compute deployments. The clusters will leverage Nvidia's Spectrum-X networking and AMD's open UALink architecture, with OpenAI positioned as a key beneficiary. This massive scaling raises critical questions about practical FP4 utilization and the staggering energy demands of next-gen AI.