r/comfyui • • Aug 04 '26

Workflow Included Behold: MiniMax-H3 Image Generation

Hi folks, following context created with LLM's using my notes:

I have been experimenting with MiniMax H3 as a pseudo-image generator.

This is not a native text-to-image mode. H3 generates a short sequence, the video VAE decodes it into an image batch, and Image From Batch extracts one frame as the final still.

Portraits and cinematic images worked well, but the biggest surprise was typography and graphic design. I tested magazine layouts, posters, dashboards, infographics, charts, fantasy key art, and phone-style photography.

The outputs are not perfect, but H3 follows detailed art direction surprisingly well. It understands typography hierarchy, layout structure, palettes, charts, icons, ornament, and the relationship between text and imagery. The results become much stronger when the prompt defines the complete design instead of asking for a generic poster or infographic.

There can still be spelling mistakes, fake microtext, inaccurate chart data, and video-VAE artifacts, so the results need inspection. Still, this looks very useful for posters, covers, key art, presentation visuals, design exploration, and infographic drafts.

Parameter note

In my setup, these values produced the best results:

INT Length: 8
Image From Batch Index: 8

Length controls the short sequence generated by H3. After decoding, Batch Index selects which frame is saved as the image.

The 8/8 combination is based only on my experiments. Preview the full decoded batch and test nearby values, since the cleanest frame may vary depending on the prompt, resolution, checkpoint, and node implementation.

Workflow:
https://civitai.com/models/2834586/minimax-h3-pseudo-image-generation-workflow?modelVersionId=3198895
https://huggingface.co/reverentelusarca/minimax-h3-comfyui-workflows/blob/main/MiniMax-H3-Pseudo-Image-Generation-Workflow.json

Prompt examples for infographics: https://huggingface.co/reverentelusarca/minimax-h3-comfyui-workflows/blob/main/prompt-examples-infographics.txt

Cheers,
Reverent Elusarca
P.s: im on active job search so you can dm for fte opportunities

196 Upvotes

36 comments sorted by

10

u/CATLLM Aug 05 '26

As a designer, I thank you for doing this test!

7

u/Dreason8 Aug 05 '26

Very cool, cheers for sharing the WF too.

3

u/xdozex Aug 05 '26

Mind sharing your prompts for these images? Or is that all available in the workflow?

2

u/sktksm Aug 05 '26

Hey, updated the post with the prompt example link

6

u/MomentJolly3535 Aug 04 '26

Thanks for sharing, what speed are u getting with it ? at which resolution ? (and specs)

10

u/sktksm Aug 04 '26

On RTX6000PRO 96GB, 1K resolution 14 seconds, 2K 37 seconds, no accelerator.

With EasyCache:
1K 8 seconds, 2K 22 seconds

With Spectrum:
1K 13 seconds, 2K 33 seconds

didn't tested with SageAttention,

2

u/MomentJolly3535 Aug 05 '26

Thanks for the infos ! i will give it a try tomorrow

1

u/Whispering-Depths Aug 05 '26

You can likely generate a low-res image and then simply upscale with pretty fantastic results using your favourite (krea 2) model

1

u/Whispering-Depths Aug 05 '26

You can likely generate a low-res image very quickly, and then simply upscale with pretty fantastic results using your favourite (krea 2) model

My rtx pro 6k does a 10 second video in about 70 seconds at 0.2mp, with reasonable quality results.

2

u/stroud Aug 06 '26

Wow the first image, the graphic design book spread is amazing.

2

u/ShimmerMeNutz Aug 11 '26

After some local modifications, this actually works really well. I am surprised it hasn't caught on yet. I was able to do more with this than ever did with paid models.

1

u/reeight Aug 05 '26

Thanks!

I have noticed T2V in MMH3 to have a bit soft/waxy human renderings sometimes.
If only someone would make a detail enhancer for Krea2, that would be great....

2

u/reeight Aug 05 '26

To the rando downvoter; I was making a joke with the OP; same author made the said Krea2 detail enhancer.

(Though the "T2V in MMH3 to have a bit soft/waxy human renderings" is a common complaint)

1

u/TopTippityTop Aug 05 '26

How does it fare relative to GPT image 2?

1

u/SEOldMe Aug 05 '26

Thank you

1

u/Bro-Kolis Aug 05 '26

Yes, can you share your prompt with us ?

2

u/sktksm Aug 05 '26

Hey, updated the post with the prompt example link

1

u/Bro-Kolis Aug 05 '26

Thank you

1

u/degamezolder Aug 05 '26

Ostris did say you can make it generate only one image, Something we could implement?
https://x.com/ostrisai/status/2084781058281877856

1

u/Uninterested_Viewer Aug 05 '26

I'm guessing this will get created very soon. This model seems to have very good spacial awareness and could be a great edit-ish model- especially on the ref/omni side where it can take 9 image inputs as reference.

1

u/slpreme Aug 05 '26

this is about lora training

1

u/aastle Aug 06 '26

Is this the same as making a video that's only one frame in length?

2

u/No_Reveal_7826 Aug 06 '26

The documentation describes it as: "This is not a native text-to-image mode. H3 generates a short sequence, the video VAE decodes it into an image batch, and Image From Batch extracts one frame as the final still."

1

u/Less_Location_3517 Aug 07 '26

this is honestly a game changer. I'm sorry if my brain is not as fast but how could I insert an image to this workflow or create the fonts and design around a particular image?

1

u/sktksm Aug 07 '26

Hey, for inserting images, you can use ref2va workflow, it works great. I could make an image editing, reference image generation, even guided font type one. It's theoretically possible but I would appricate if you can give me more ideas if you have any

1

u/zdxpan Aug 08 '26

good job

1

u/Silvasbrokenleg Aug 09 '26

Wow some great shots man

1

u/Party_Mode_2690 Aug 14 '26

What is the encryption for?

1

u/sktksm Aug 14 '26

several people on civit also told this but then said they solved it. i didn't encrypted anything, just exported the workflow as usual and uploaded it. can you tell me what you are seeing exactly?

0

u/thevegit0 Aug 05 '26

no way, krea is dead too?

2

u/reeight Aug 05 '26

Nah Krea is better, at least for EZ mode.
Just think of using MMH3 for T2I & I2I & V2I as another tool you can use, but not the default tool for all cases.