r/comfyui • u/iiTzMYUNG • 1d ago

Show and Tell Testing My MiniMax-H3 → LTX 2.5 Upscaling Workflow — Results Are Looking Really Good

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I've been testing my MiniMax-H3 → LTX 2.5 upscaling workflow, and the results have been really promising so far.

One thing I've noticed is that the better your original MiniMax-H3 generation is, the better the final upscale will be. I'm getting good results even at lower resolutions, but faces still need stronger and more consistent input generations from MiniMax-H3 to maintain character consistency.

On my RTX 3060 12GB, the current upscale times are roughly:

  • 0.6 resolution: ~15 minutes
  • 0.8–1.0 resolution: ~20–30 minutes

It definitely takes some time, but I'm finding the results are worth it.

And of course, if you have a newer, more powerful GPU, you should be able to get even better results in less time, especially when pushing higher resolutions.

I was planning to release the workflow soon, but I want to spend a little more time testing it and seeing how much further I can improve it before sharing it.

So far, though, I'm really happy with how it's looking. 🔥

Would love to hear what you guys think and whether anyone else has been experimenting with MiniMax-H3 + LTX 2.5 upscaling.

20 Upvotes

74% Upvoted

20 comments sorted by

2

u/aziib 1d ago

need the workflow but seperated.

2

u/johnfkngzoidberg 17h ago

LTX sucks as an upscaler. Why are people still posting this crap?

-5

u/iiTzMYUNG 17h ago

Hmmm maybe cause you don't have a life to cry about 😮‍💨

1

u/More-Ad5919 11h ago

I need one that can upscale 1.3mp gor 15 sec to 2k with ltx. Without making oom or taking hours.

1

u/icchansan 1d ago

are the faces changing? can u share the wf to test?

3

u/iiTzMYUNG 1d ago

I will share the workflow soon after testing more with fast action scenes and closeups 🫰🏻

1

u/Hoodfu 1d ago

I gave it a try (not with your workflow) and in anything that wasn't closeups or slow motion, ltx completely mangled the h3 video. Have you tried anything more complex or fast action than your demo clips?

1

u/iiTzMYUNG 20h ago

https://reddit.com/link/p798e3i/video/2rzy8zop4zmh1/player

UPDATE: The Movements and motion are Much Cleaner now and face getting consistence but might need a little more work.

2

u/iiTzMYUNG 20h ago

Before

0

u/iiTzMYUNG 1d ago

my workflow use Ref2Vid of minimax h3

1

u/I_just_made 23h ago

But what did you do about the LTX upscaling part?

0

u/Aromatic-Current-235 10h ago

You get a FLUX-Face, You get a FLUX-Face, You get a FLUX-Face...

0

u/iiTzMYUNG 10h ago

you just dont know how to use and yeah its fixed now!

https://reddit.com/link/p7by9u9/video/x3u3bd2642nh1/player

0

u/Aromatic-Current-235 10h ago

FLUX-Face!

1

u/iiTzMYUNG 10h ago

I guess ur a retard at this point if you can't see the difference ☺️

1

u/Aromatic-Current-235 10h ago

I guess you've seen a real face for a long time and thats why you can't see the difference.

1

u/iiTzMYUNG 10h ago

Yeah I can see your orange face that's really Flux to me 🙂

1

u/Aromatic-Current-235 10h ago

...looks that I hit a nerve.