Google Cloud and Nvidia announced the general availability of A5X instances, accelerated by Nvidia Vera Rubin NVL72 systems, with a planned expansion to Europe coming next month, according to a press release from the companies.

The A5X instances combine Nvidia Vera Rubin NVL72, Nvidia ConnectX-9 SuperNICs, Google Cloud Virgo Network and Google Cloud's fourth-generation liquid-cooling technology. Google Cloud said it plans to scale its Vera Rubin-based infrastructure to as many as 960,000 Rubin GPUs across multiple sites.

Ineffable Intelligence, a London-based company founded by AlphaGo creator David Silver, was identified as the first customer to access A5X. The company is using the platform for large-scale reinforcement learning research.

"We're building superlearners that continually improve through their own experience," said David Silver, founder and CEO of Ineffable Intelligence. "Vera Rubin's combination of compute performance and high-bandwidth connectivity allow us to push the scale and ambition of our reinforcement learning research further."

WPP, a London-based marketing and communications company, has demonstrated a creative agent reference architecture on Nvidia Vera Rubin-based A5X instances using Nvidia Nemotron models. In WPP's initial tests, workloads that previously required a multi-node cluster ran on a single A5X instance.

Google Cloud also said it will be among the first cloud providers to offer Nvidia Confidential Computing at rack scale on bare metal instances, including A4X Max instances powered by Nvidia GB300 NVL72. Confidential Computing is being made generally available on G4 virtual machines powered by Nvidia RTX PRO 6000 Blackwell Server Edition GPUs.

Google Cloud and Nvidia said they are also exploring Nvidia DSX MaxLPS capabilities for Vera Rubin-based infrastructure to optimize performance per watt within data-center power budgets.