NVIDIA Sol Engine Accelerates LTX-2.5 Video Generation by up to 4.68x

gan_chuang · x · 2026-08-14

NVIDIA's SANA team released the Sol Video Inference Engine, offering full-stack optimization for Lightricks' newly open-sourced 22B video generation model, LTX-2.5. Sol adapts across hardware targets from GB200 data center GPUs to RTX 5090 consumer cards.

By combining parallelism optimization, diffusion cache, kernel fusion, and sparse attention, the engine achieves up to 4.68x speedup for multi-step pipelines and 1.90x for distilled pipelines, drastically improving video generation efficiency.

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