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MiniMax H3: VAE decode is 43% of my generation time (~5.5 min per 15s clip on a 4090) — anything I can do in WanGP?

This story is from 2026-08-20. It is preserved in the archive; the latest stories are on the live feed.

Make sure you read the EDIT below : you'll find some corrections and the solution. I've been profiling MiniMax H3 generations after producing ~75 segments over the last few days, and the numbers point squarely at VAE decoding. Sharing the measurements in case they're useful, and hoping someone has…

Read the full story at r/StableDiffusion ↗

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  1. 2026-08-20 11:09 · r/StableDiffusion
    MiniMax H3: VAE decode is 43% of my generation time (~5.5 min per 15s clip on a 4090) — anything I can do in WanGP?

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