MiniMax H3 R2V takes ~16 minutes for a 5-second video on RTX 5090
Less-Wrangler5604 · reddit · 2026-08-25
A user running MiniMax H3 Reference-to-Video (R2V) in ComfyUI on Vast.ai with an RTX 5090 (100GB RAM) reports 1,000 seconds (16-17 min) for a 5-second, 1MP video with one reference image. Reference consistency is great, but the speed seems very high for a 5090. They're asking for optimisations — attention methods, workflow changes, settings — and for other 5090 users' generation times.
Related event: MiniMax H3 R2V Takes 16 Minutes for a 5-Second Video on RTX 5090(2 posts)→
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