# MiniMax H3 Extender Ref2VA

## Summary

Imported `MiniMax H3` continuation workflow based on
`tritant/ComfyUI_MiniMax_H3_Extender`. This is a `Ref2VA`-first extender with
shared image references, optional audio reference, Motion Context continuity,
validated clip-by-clip reuse, and final joined video/audio decode.

## Model Family

- `minimax`

## Status

- `imported-only`

## Source

- Repo: <https://github.com/tritant/ComfyUI_MiniMax_H3_Extender>
- Workflow file: <https://github.com/tritant/ComfyUI_MiniMax_H3_Extender/blob/main/Workflow/MiniMax_Extender.json>
- Original publisher: `tritant`
- Date imported: `2026-08-16`

## Developer notes

- The upstream node is built around a single horizontal sequence node instead of
  a large repeated graph.
- It keeps a validated disk cache, supports `clip_by_clip` and `full_batch`,
  and is explicitly designed for longer `MiniMax H3` continuation chains.
- The upstream README says it combines `Ref2VA`, Motion Context, disk caching,
  per-clip prompts, per-clip seeds, and final decode/export into a simpler
  flow.

## Our notes

- This import is worth keeping because it is natively `reference-to-video`
  oriented and closer to Chris's actual MiniMax use than generic `t2v` graphs.
- I replaced the source repo's very specific demo clip script with a neutral
  reusable starter clip state so the imported workflow opens as a practical
  template instead of someone else's scene.
- The graph still uses the upstream source-leaning stack, so it is more of a
  donor / comparison import than the first `3070` workflow to run.

## Required custom nodes

- `ComfyUI_MiniMax_H3_Extender`

## Required models

- `MiniMax H3` `Ref2VA` checkpoint
- matching `MiniMax H3` text encoder
- `MiniMax H3` video VAE
- `MiniMax H3` audio VAE
- optional turbo LoRA path if enabled

## Notes

- Use this when you want the upstream extender logic itself.
- For the maintained optimized lanes, use:
  - `optimized/image-to-video/minimax-h3-r2v-master/`
  - `optimized/image-to-video/minimax-h3-extension-master/`