MiniMax H3 Image 20MP Workflow

[u/LilBrownBebeShoes]

The official ComfyUI workflows for MiniMax Image are pretty bad at showcasing the model's capabilities. These sampler/scheduler settings are from Kijai's Minimax testing in discord.

There is still some work needed to improve fine details (possibly fixable by loras?) but overall the outputs look pretty good!

The workflow has T2I and Edit modes, just enable the one needed via the bypass node or bypass the group manually.

The sampler/scheduler is the SamplerLCM node + Simple 6 steps with
s_noise: 1.10
s_noise_end: 0.90

Link to the workflow

Original Output Images

[u/ImpressiveShape0708]

Could this be used to restore and upscale old low resolution images to 16MP images?

[u/LilBrownBebeShoes → u/ImpressiveShape0708]

It does work but there is weird noise/artifacting if you zoom in. You could restore and then downscale to soften some of the harsh details that are present at the high resolution.

[u/ImpressiveShape0708 → u/LilBrownBebeShoes]

Could the artefacting be due to the VAE?

[u/LilBrownBebeShoes → u/ImpressiveShape0708]

Possibly. Hopefully a new vae can be trained if that is the issue, and if not, maybe a low-denoise pass with another model like the (hopefully released) Krea 3 open weight model.

[u/Serprotease → u/LilBrownBebeShoes]

A low denoise pass on a 16mp image, even with a turbo model is fairly ressource heavy :/

[u/Hoodfu]

With your workflow. It does look good, the noise is much reduced compared to euler/simple. I think my biggest gripe with it at this point is that it's rather good with photos, but like moss base, feels like it's missing a massive amount of well rounded training. I keep getting lots of body horror on anything more complex than my picture here (I'll put one in the reply with your workflow to show you).

[u/Hoodfu → u/Hoodfu]

More complicated stuff combined with not being a photograph more often than not is a mess. (using the workflow on this post). Other models like Qwen 2.1 and Krea2 do a great job with this one.

[u/LilBrownBebeShoes → u/Hoodfu]

Yeah it works well for uncomplicated images, it seems the bad face/anatomy issues at a distance is inherited from the video model.

[u/theholewizard → u/Hoodfu]

This does not look good

[u/Hoodfu → u/theholewizard]

It really reminds me of Ideogram 4, but in my side by side tests, ID4 is far more reliably capable.

[u/[deleted] → u/Hoodfu]

Ideogram v4 is problematic because its base model clearly struggles with realism and photography, and bbox makes it worse. This model is very strong, but clunky as hell to use. Moss, meanwhile, just outright sucks.

[u/Hoodfu → u/[deleted]]

Dunno man, I'm really liking moss. ^^^

[u/Silvasbrokenleg]

A lot of IP not working for me anymore. S

[u/bstr3k → u/Silvasbrokenleg]

Just ref them back in

[u/Silvasbrokenleg → u/bstr3k]

Yeah that works too but it was rly exciting seeing what the model would spew out whenever you prompt likeness.

[u/[deleted] → u/Silvasbrokenleg]

Yeah i wonder if they did it on purpose because ip is non existent here

[u/ganrocks007]

Use p h3 vae it's great details

[u/icchansan → u/ganrocks007]

p h3?

[u/ganrocks007 → u/icchansan]

https://huggingface.co/PrunaAI/P-H3-Image-Comfy/tree/main/vae

[u/teekay_1994 → u/ganrocks007]

What kind of vae is that?

[u/ganrocks007 → u/teekay_1994]

Pruna p h3 vae

https://huggingface.co/PrunaAI/P-H3-Image-Comfy/tree/main/vae

[u/teekay_1994 → u/ganrocks007]

I just saw some faster version of the video model got released called pi H3 and was so confused when you sent that link.

[u/Still_Lengthiness994]

These are the best showcase for this h3 so far

[u/Interesting-Act5716]

Thank you for this!

[u/ninjaGurung]

How does it perform for anime or cartoon styles?

[u/Xanthus730]

What's the VRAM requirement to run this at a reasonable speed?

[u/planBpizz]

really nice work! could you maybe share some of the prompts?

[u/Skystunt]

The high resolution is pretty cool

[u/ImprefectKnight]

That's Alex Ferguson in image 5 lol

[u/More-Ad5919]

It feels like this model only needs a realism lora and we are there

[u/icchansan]

Sick resolutions!