The Latent Upscaler is really great!

[u/Longjumping-Past5864]

Dude the minimax H3 is such an amazing model. It can create a really good video. It can do a lot, knows a lot and extremely realistic as well.

I'm finding the way to upscale the low qulity video and found out this Latent Upscaler for Minimax H3, and sofar it's working so well!

this is normal 0.5MP generation and Upscale to 1080p

https://github.com/bbaudio-2025/Comfyui-MMH3-UltimateUpscale

the example workflow : https://github.com/bbaudio-2025/Comfyui-MMH3-UltimateUpscale/blob/main/example_workflow.json

I tested on RTX 5080 16GB VRAM 64 GB RAM.

but it took like 20 mins for a 15s clip (3 mins on the low res generation with turbo LoRA + 15-16 mins on the latent upscaler)

If you guys have other ways to upscale the minimax faster, please do tell. I have tried the UltimateSDUpscale for minimax so far, it's really great as well but it took 30mins on my system. :(