Nvidia open-sources Flora to make robot video labeling 125x cheaper than GPT-6 Astra

Nvidia has open-sourced Flora, an open data engine built from three fine-tuned Qwen3.5 models that produces action descriptions, step-by-step progress ratings and success judgments for robot video. Nvidia estimates labeling one hour of video costs about 72 cents with Flora versus roughly $88.50 with GPT-6 Astra, though those figures are projections based on an assumed $10 per GPU-hour, and Flora trails Astra on some public benchmarks. Nvidia says Flora is already annotating up to 200,000 hours of video per day across 512 GB300 GPUs during training of its GR00T models, with models available on Hugging Face.