CoreWeave said Thursday it has installed the industry’s first Nvidia GB300 NVL72 artificial-intelligence server, becoming the inaugural cloud provider to run Nvidia’s Blackwell Ultra graphics processors in production. The rack-scale system was delivered by Dell Technologies and is already available to CoreWeave customers. The liquid-cooled platform combines 72 Blackwell Ultra GPUs with 36 Nvidia Grace CPUs, a configuration Nvidia says can boost inference throughput by as much as 50 times, improve user responsiveness tenfold and deliver five times the energy efficiency compared with the prior Hopper architecture. The hardware is aimed at large-scale AI reasoning and agentic workloads. Early access to Blackwell Ultra underscores CoreWeave’s growing influence in the crowded AI-infrastructure market and highlights its close ties with Nvidia, which holds an equity stake in the company. Nvidia expects broader shipments of Blackwell Ultra systems later this year, making CoreWeave’s deployment a key milestone in the chipmaker’s product rollout. Investors welcomed the news: CoreWeave shares gained about 6% on Thursday, while Dell rose roughly 2% and Nvidia edged up less than 2%.