🚀 Sol-H3 on DGX Spark: 768p in Under a Minute 🤩
Monday: 8×B300, 5s 768p in 1.65s — faster than playback.
Today: the same stack on one desktop Spark — about 56s hot E2E.
Five seconds of 1344×768 video at 24 FPS with stereo audio, on a single NVIDIA DGX Spark (GB10).
Two-stage, not the datacenter profile:
384p H3 draft → latent ×2 → H3-to-LTX VAE adapter → 768p LTX refine → VAE decode
No decode/re-encode between stages. Stage 2 is conditioned on the draft latent, so Gemma stays off the box. Quantized weights stay resident; sparse attention cuts the rest.
Stage 1 takes any MiniMax-H3 few-step LoRA. Timing is hot E2E (encode → both stages → video/audio VAE); cold start and MP4 mux are separate. Apache 2.0.
Server was realtime. Edge is one box, under a minute.
🔗
Amazing team effort—full credits in the blog.
@haopengl33 @lawrence_cjs @yitongli165665 @shanasaimoe ,Jingyu Xin,
@HaochengXiUCB @songhan_mit