The real breakthrough in the NVIDIA SANA team’s Sol Engine work on MiniMax H3！
By splitting generation into a 4-step low-res H3 draft and a 3-step LTX refinement pass at target resolution with Sol-Attn, they’ve crushed 10s 768p latency on a single GB200 from 414s down to 14.93s (27.7x speedup). Replacing heavy VAE decodes with TAEH3/TAEHV while holding the latents stable for refinement is a masterclass in co-designing sampling topology with hardware kernel acceleration.
When inference latency collapses this dramatically, unit economics fundamentally shift: a single node can suddenly serve 378K videos a month at 97%+ GPU margins. This is how high-fidelity AI video moves from asynchronous batch rendering to near-instant, interactive infrastructure. Huge respect to the team for setting a new engineering bar for our open-weights ecosystem! 🫡🩵
A draft-then-refine sampling split with Sol-Attn kernels takes 10 seconds of 768p H3 video from 414s to 14.93s on one GB200. Video generation moves out of batch rendering and into interactive latency budgets, with serving costs to match.
