Crusoe unveiled Spark Liquid, liquid-cooled modular AI units of up to 3.5 MW

On 21 October 2026 Crusoe, which builds AI data centres and runs the Crusoe Cloud platform, announced Spark Liquid from Denver: a liquid-cooled, prefabricated data centre unit that the company says supports up to 3.5 MW of compute each.

What Crusoe announced

Crusoe describes Spark Liquid as its sixth-generation modular platform. Spark units are built in Crusoe's own factory and shipped to the site complete, and Spark Liquid units are meant to be installed in clusters for training or inference work at different scales. The company says the design was engineered for NVIDIA's GB300 NVL72 and Vera Rubin NVL72 rack-scale systems.

According to Crusoe, the new generation offers five times the compute density of earlier ones. Cooling is a closed-loop, non-evaporative direct liquid design, which the company says neither consumes nor evaporates water. Crusoe also says its Spark approach shortens field construction from years to months and brings capacity into service more cheaply than conventional building. All of these performance statements are the company's own.

Where it fits in Crusoe's cloud

The company positions Spark as a main engine of growth for Crusoe Cloud, adding capacity anywhere that both power and demand are available. It lists three uses for Spark Liquid: adding high-density compute at new or existing sites; placing compact capacity near end users for inference that cannot tolerate delay; and strengthening existing sovereign AI infrastructure in selected international markets, in line with local data privacy rules.

Cully Cavness, Crusoe's co-founder and president, who is also its chief strategy officer, said Spark Liquid draws on lessons from hundreds of earlier modular deployments. He added that Crusoe has brought Spark's design, engineering, manufacture, deployment and operation in-house to cut the cost and time of building AI compute for customers.

Crusoe names Ollama, a platform for running open models, as a customer already using Spark. The release says Ollama hosts some models on its cloud service using Spark infrastructure in the US, and runs dedicated workloads on Spark modules that Crusoe says are powered by solar energy and second-life batteries. Michael Meltzer, Ollama's chief business officer, said Crusoe owns every layer, from the power supply up to the GPUs, at its data centres in the US and Europe, and that Ollama looks forward to further growth on Spark.

Production plans

Crusoe says Spark Liquid will be made in Colorado, joining the existing Spark line at its Brighton factory in 2027. That production date was a plan at the time of the release.

On the same day Crusoe also announced two cloud software products, Managed RL and Managed MLflow, both in private preview, which the company says let customers tailor open models to their business and show that they perform in production.