AI Explained
Plain explanations of trending AI concepts, with live visualizations.
GPU
NVIDIA Vera Rubin NVL72 — Rack-scale NVLink domain — What does it mean?
Vera Rubin NVL72 wires all 72 Rubin GPUs in a rack into one sixth-gen NVLink domain — collectives no longer cross PCIe-over-network between 8-GPU islands.
GPU
LongLive-2.0 — NVFP4 W4A4 across training and inference — What does it mean?
NVIDIA's LongLive-2.0 runs training AND inference of a 5B long-video model in NVFP4 — W4A4 matmul plus a 4-bit KV cache — for 2.15× training and 1.84× inference speedup.