Nvidia has open-sourced the robot video annotation engine Flora, with annotation costs approximately 1/125th of GPT-6 Astra.
Nvidia GEAR Lab has open-sourced Flora, a robot video annotation engine built from three fine-tuned Qwen3.5 models. It covers three annotation types: action segmentation, execution scoring, and result verification. The model is available on Hugging Face and has been used to train GR00T. On 512 GB300 GPUs, it can annotate 200,000 hours of video per day.
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