NVIDIA open-sources first 4-bit infrastructure for ultra-long video generation

NVIDIA开源首个4-bit超长视频生成基础设施

NVIDIA researchers open-sourced LongLive 2.0, an end-to-end long-video generation infrastructure covering training and inference with 4-bit quantization, FP4 quantization, parallel acceleration, KV-cache optimization, and 45.7 FPS generation on a 5B model.

Why it matters: HKR-H/K/R all pass: NVIDIA researcher open-sources LongLive 2.0 with 4-bit long-video train/inference and 45.7 FPS on a 5B model. This is strong open-source infra, not a flagship model launch, so it fits the 78–84 band.