A Deep Dive on CoreWeave Innovations for NVIDIA Vera Rubin NVL72

A Deep Dive on CoreWeave Innovations | CoreWeave Blog

Announcement

Webinar

Podcast

GTC 2026

CoreWeave to Join Nasdaq-100 Index. Read the press release

Products

Data and storage

Infrastructure control

Runtime acceleration

Model and agent development

Mission control

Solutions

Pricing

Resources

About us

Contact us Login

Contact us Login

Clear

Agentic AI is shifting to continuously learning systems capable of autonomous reasoning, orchestration, and self-improvement. Trillion-parameter models, million-token context windows, and always-on sessions are becoming the norm, and the infrastructure underneath it needs to evolve just as fast. In January , CoreWeave announced it would be among the first cloud providers to deploy the NVIDIA Vera Rubin platform, joining NVIDIA Ada Lovelace, Hopper, and Blackwell platforms on CoreWeave. Maintaining that pace is not easy: every new generation means re-engineering power, cooling, networking, and software from the rack up in lockstep with NVIDIA. Earlier this month, CoreWeave became the first cloud provider to validate and successfully run diagnostics on NVIDIA Vera Rubin NVL72.

Six innovations. One rack. Unmatched scale. NVIDIA Vera Rubin NVL72 unifies leading-edge technologies from NVIDIA—72 Rubin GPUs, 36 Vera CPUs, ConnectX®-9 SuperNIC™s, and BlueField®-4 DPUs. It scales up intelligence in a rack-scale platform with the NVIDIA NVLink™ 6 switch and scales out with NVIDIA Quantum-X800 InfiniBand and Spectrum-X™ Ethernet to power the AI industrial revolution at scale. It delivers AI training with one-fourth the GPUs and AI inference at one-tenth the cost per million tokens versus NVIDIA Blackwell.

“Our research depends on infrastructure that's both powerful and reliable, and CoreWeave has delivered on both as we've scaled across Hopper and Blackwell. Their ability to deliver highly performant clusters with full cluster observability and a support team that engages deeply on hard problems gives us the confidence to partner with them on Vera Rubin. We are excited about the efficiency gains at rack scale translating into faster training runs and shorter iteration cycles for our researchers." Craig Falls, Head of Quantitative Research, Jane Street Today, 9 out of the 10 leading foundation model providers rely on CoreWeave. But we don’t take that for granted. With each new system, we engineer for deeper optimizations, sharper observability, more operational tooling from day zero to beyond that result in higher MFU, greater goodput, and longer MTTF. We took the same approach with Vera Rubin NVL72 and developed several new innovations across the full stack, from liquid cooling improvements to observability enhancements engineered into CoreWeave Mission Control TM . The goal: unlock the full potential of the rack-scale system in a way that no other cloud can, so customers can skip the operational burden and get straight to what they do best—innovating. Patent-pending valve assembly that makes liquid cooling software-defined Valvey, part of CoreWeave Mission Control, is a patent-pending programmable per-rack liquid-cooling valve assembly that transforms cooling from a passive mechanical system into a software-defined control surface. It monitors and controls every variable in the rack's liquid cooling loop including flow rate, temperature, pressure, and leak detection and is the single point through which every cooling decision is executed. When higher-level systems need to optimize cooling, isolate a rack for maintenance, or trigger an emergency shutdown, those actions run through Valvey automatically, without manual intervention. This matters most at scale. In architectures where multiple racks share a remote CDU, Valvey enables true per-rack isolation; one rack can be serviced or drained without disrupting neighboring racks on the same cooling loop. The result is large-scale liquid-cooled infrastructure that contains failures faster, so customers get higher goodput even as their fleet grows.

Jacob Yundt, Sr. Director of Engineering, with Valvey, CoreWeave's patent-pending programmable liquid cooling management system.  Unified rack control: turning hardware into a managed cloud resource Racky is CoreWeave Mission Control's rack manager, designed to give every Vera Rubin NVL72 rack a standardized, software-addressable control surface. Sitting at the top of the rack, it aggregates power, cooling, and environmental sensors. This allows Racky to monitor rack health, control valves and power functions, and gather the right telemetry—including leak detection and flow and temperature data—while exposing a unified management interface to the broader CoreWeave infrastructure. Racky works in concert with Valvey and the Rack LifeCycle Controller (RLCC) to form CoreWeave's full rack-scale control stack: Valvey executes cooling actions, RLCC orchestrates workflows, and Racky is the per-rack control point that ties it all together. This means CoreWeave can treat every NVIDIA Vera Rubin rack as a managed cloud resource rather than a custom one-off hardware installation, making fleet operations consistent, observable, and scalable from day one.

Racky, CoreWeave's unified rack manager, aggregates power, cooling, and environmental sensors to monitor and control the health of a Vera Rubin rack. Liquid-cooled ethernet network for agentic AI CoreWeave is one of the first cloud providers to deploy the 100% liquid-cooled NVIDIA Spectrum-X SN6600 Ethernet Switch. The Spectrum-X SN6600 delivers industry-leading 102.4 Tb/s of total switching capacity across 128 ports of up to 800 Gb/s, built on NVIDIA's Spectrum-6 switch architecture. It represents a generational step in Ethernet switching, purpose-built for the bandwidth and low-latency demands of large-scale AI. As the scale-out fabric for Vera Rubin, the Spectrum SN6600 is what stitches individual NVL72 racks into a single, unified cluster, extending the coherent compute domain beyond a single rack so thousands of GPUs can train and serve as one system rather than a collection of isolated pods. What makes CoreWeave's Spectrum SN6600 deployment distinct goes beyond the switch itself;  it's how the full infrastructure stack is engineered around it. CoreWeave pairs the Spectrum-X SN6600 with Racky, our unified rack manager, and Valvey, our in-rack liquid-cooling valve assembly. Racky provides precise, real-time control over power delivery and the thermal...