H3 video speedup site adds 15s comparisons: 1 MP videos in ~1 minute
Ambitious-Tie7231 · reddit · 2026-09-27
The author updated their H3 video-generation speedup comparison site with a new 15-second "Night market" tab and a new raw baseline (25-step euler, comfy-kitchen attention, no Turbo LoRA), plus new Turbo LoRAs and distilled models like FastH3 and Tao.
Key findings:
- LightX2V Turbo LoRA beats baseline: in the comparison clip the monkey runs away from the cook as intended, while baseline shows them moving together.
- 15-second 1 MP generations finish in 1 minute with impressive quality.
- The "Combining methods" tab shows massive speedups with good results.
- A Detailed toggle exposes node widget values so others can rebuild the workflows.
The author also previewed their custom H3 Express Sigmas node — "invented" by having Claude Opus 5.5 read all logs from their structured experiment folders — to be open-sourced after final comparisons. All results are currently AI-rated (Claude Opus 5.5 xHigh), with a possible blind-vote Arena/leaderboard later.
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