Nebius Launches AI Cloud 3.1 With NVIDIA Blackwell Ultra Compute And Enhanced Operational Capabilities

• NVIDIA HGX B300 and GB300 NVL72 systems with 800 Gbps NVIDIA Quantum-X800 InfiniBand — Europe's first GB300 NVL72 on this fabric — deliver next-generation performance for large-scale AI training and inference
• New Capacity Blocks and real-time dashboard features provide transparent visibility into GPU availability, enabling precise resource planning and operational efficiency at scale
• Aether 3.1 also delivers enhanced AI/ML developer tooling, expanded ecosystem integrations and granular enterprise-grade governance controls, accelerating time-to-value while reducing risk

Amsterdam, December 17, 2025 — Nebius today announced Nebius AI Cloud 3.1, bringing next-generation NVIDIA Blackwell Ultra compute and enhanced operational capabilities to the latest release of its full-stack AI cloud platform. Version 3.1 builds on the foundations of Nebius AI Cloud "Aether", adding transparent capacity management and expanded infrastructure to deliver the operational visibility and resource-planning capabilities that customers need as they scale AI in production.