Nebius wins NVIDIA Exemplar Cloud validation for HGX B300 training

Nebius said it achieved NVIDIA Exemplar Cloud validation for HGX B300 AI training workloads, extending prior validations on H200 and GB300 NVL72. It also cited fastest single-node HGX B300 training times for Llama-3.1-8B and GPT-OSS 20B in MLPerf Training 6.0 closed division, SemiAnalysis Platinum ClusterMAX 3.0 status, and said NVIDIA HGX B300 clusters are available via Nebius AI Cloud.