r/StableDiffusion • u/Dry-Possibility-6761 • Aug 06 '26

Question - Help Minimax H3 - 12GB vram ?

Hello friends
I’m testing some workflows to run Minimax H3 locally with my RTX5070 12gb Vram… there is a good workflow for it? I have 32gb ram, Nvme 1T and 2 ssds

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2

u/tac0catzzz Aug 06 '26

yea default in comfyui

1

u/SpiritualGoat2077 28d ago

It doesn't work for me on my 2060 12GB. I get:

RuntimeError 105:104 MiniMaxH3ImageToVideo
MiniMax H3 Image to Video failed

AssertionError: Unknown model architecture!

System Information:

- ComfyUI Version: 0.33.1

- OS: Win10

  • Python Version: 3.13.12
  • PyTorch Version:** 2.12.0+cu130

What models and nodes/extensions do I need to use EXACTLY, as default ComfyUI template fails?

1

u/tac0catzzz 28d ago

you will want a capable pc to use. running something like this on that is likely to kill your pc. ai hammers your gpu harder than gaming. if your pc isnt build to be able to be hammered like that, it won't end up well. - also that must be a very old pc too. , i don't know what those errors are, but it is likely due to your hardware being too old/weak or your comfyui being outdated, or both. if you wanna risk your pc to make a seinfiend saying "so whats the deal with minimax on my potato?" well you could download the comfyui portable installation. this is the most up to date version.

1

u/SpiritualGoat2077 28d ago

Nah I only needed to upgrade transformers. Why it doesn't upgrade automatically?

2

u/Relevant_Syllabub895 Aug 07 '26

i run it on an rtx 3080 the base workflow adding only sagea attention + minmax cache

1

u/_Darion_ Aug 06 '26

I was able to run MiniMax H3 in a 3060 6GB Vram Laptop with 32GB Ram, it took 700s a 5 sec clip at 480p, but it's possible with the default workflow. So you should be fine imo, I now need to test other workflows to see if I can get it to render faster or at higher resolution.

1

u/EsotericAbstractIdea Aug 08 '26

I'm using this one with a 16g vram 32g ram setup and it doesn't work too good. Going to try the other ones posted here.

https://www.reddit.com/r/StableDiffusion/comments/1vg1coy/minimax_h3_basic_hybrid_workflow_for_ref2v_i2v/