This is the basic MiniMax H3 workflow I am using. I like keeping things organized so I made this for myself and might as well share it.

Choosing mode will send the signal to adjust pathways automatically, so it is space efficient and no redundancy.

Nodes are confined to each group, with GET and SET as start and end points, so you can move groups around to your liking without worry.

I use H3 Prompt Writer so auto prompting is not included in the workflow itself.

How to use:

T2V - Disable both First and Last Frame while choosing FL2V Mode, automatically takes dimensions from Resolution Selector

FL2V - Enable First Frame (and Last Frame) while choosing FL2V Mode, automatically takes dimensions from Image Resize

REF2V - Choose REF2V

For the optimization nodes, enable them with Ctrl+B. Let me know if you want quick access for them.

Putting Spectrum and FirstBlockCache together might be a mistake. Only enable one of them.

All custom nodes links are included in markdown note. Use legacy UI and install via Git URL if you can't find it.