Nebius $NBIS lifted AI training throughput 1.1% across 192 Nvidia $NVDA B300 GPUs with one PyTorch setting and no new hardware.
That is about two extra GPUs' worth of output, which matters when Microsoft $MSFT and Meta $META have signed Nebius deals worth tens of billions.
Nvidia is also a $2B Nebius investor, while AMD $AMD is the rival chipmaker with OpenAI and Anthropic deals of its own.
Nebius says the gain is modest and based on one model and one setup, but a 1% edge across a cluster this size is real money.