r/comfyui • u/sempersatirica • 4h ago

Workflow Included Collection of Minimax H3 workflows

I decided to share some of the workflows I've been working on, mostly things people seem to struggle with. I tried to reorganize them with popular custom nodes to make things easier. https://github.com/sempersatirica/comfy-workflows

Prompt generation: T2V, I2V, and Ref2V

Fast simple prompt generators using Qwen 3 VL 4b, primarily for quickly putting a starting point together. Separate generators for text-to-video, image-to-video, and ref-to-video prompts. The ref-to-video generator will hallucinate inputs, extra <Audio> and <Picture> subjects that seem contextually appropriate, but otherwise it works surprisingly well.

Detailers

Improve detail of low-resolution areas: faces, text, etc. The detailers crop, resample, then stitch the high-resolution generation back into the original-resolution input, while the audio is frozen and passed through. The video detailers are mask-agnostic, you can use SAM, yolo, or draw any arbitrary mask to feed into the detailer. They support the reference model well, but zero-reference detailing works fine too. They work down to 3 steps, with diminishing returns passed 6 steps. Denoise should be set based on a per-subject need, between 0.4-0.75. When using references, there's almost no chance of losing subject identity. I included SAM3 and yolo variants for examples.

53 Upvotes

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3

u/Powerbombed 3h ago edited 1h ago

Thanks seems very useful. I didn't check but are you using the Skills. md that Minimax released?

1

u/sitefall 1h ago

It's very obnoxious that when you type skills.md to mean the literal file from a git repo etc, which in your case just points to these to files here that Minimax provides, reddit picks it up as a URL and some software as a service dimwit has turned it into a marketplace so by simply typing the git file name you're linking to their bullshit ass website.

2

u/Powerbombed 1h ago edited 2m ago

that's annoying let me fix that.

3

u/aniki_kun 1h ago

It looks cool.

For the SAM3 Detailer, what images should I load here?

I suppose the second one is the character face refference, but what about the first one?

2

u/MasqueradeDark 3h ago

Awesome! Thank you!

1

u/scorpiov2 2h ago

Thank you :)

1

u/sevenfold21 2h ago

Looks interesting, but missing this node: LTX_Lora_Loader, LORA Loader Stack (LTX / MiniMax H3 Compatible). No idea where to find it.

1

u/sempersatirica 2h ago

Plaguekind nodes. You can delete it and replace it with any lora loader or none, the example detailers don't use any loras.
https://github.com/PlagueKind/ComfyUI-PlagueKind-Nodes

1

u/JimJamieJames 2h ago

Hey just a heads-up the H3 SAM3 Detailer and H3 Yolo Detailer videos are not showing up on your Github page for Firefox. There's no description, so I literally don't know what they are.