Nebius Rated Platinum in SemiAnalysis ClusterMAX™ 3.0

SemiAnalysis awarded Nebius its highest ClusterMAX 3.0 Platinum rating after months of testing live NVIDIA GB300 and HGX B300 clusters under training, inference, storage-concurrency, and recovery workloads. The assessment highlighted Nebius’s reliable operations, topology-aware Slurm scheduling, current software packages, network performance, and low-friction orchestration, while recognizing its open-source Soperator platform for combining Slurm scheduling with Kubernetes and simplifying storage management through VirtioFS-backed persistent volumes. Testing identified storage performance and metadata-consistency issues under heavy concurrent use, which Nebius addressed before retesting confirmed resolved errors, above-median per-client performance, and scalability across two racks. SemiAnalysis also found that Nebius automatically detected, rebooted, and restored a failed node in a GB300 NVL72 rack without manual intervention, and praised its monitoring dashboards, automated remediation, and cluster-health visibility.

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