Two ComfyUI graphs ship with this episode. Both are supplied files: no clip was rendered for this article, no timing was taken, and nothing below is a quality comparison.
The two graphs
| MiniMax H3 FL2VA - First/Last Frame with Keyframe Timeline | MiniMax H3 Ref2VA - Multi-Reference with Keyframe Story Beats | |
|---|---|---|
| Nodes / links | 80 / 128 | 87 / 141 |
| Node types | 35 | 40 |
| LoRA nodes | 0 | 0 |
That last row matters: earlier episodes in this series shipped five-LoRA stacks. These two ship none. If you are coming from those, do not expect a LoRA bench here - the character of the output comes from the conditioning path, not from weights.
Sampling is a custom chain, not a KSampler
SamplerCustomAdvanced appears 3 time(s). KSamplerSelect appears 1 time(s). Scheduler/guider side: RandomNoisex1, BasicGuiderx3.
So there is no single "steps / CFG / sampler" tuple to quote, and this article will not invent one. Open the graph in your own ComfyUI and read the actual sampler widgets before assuming a step count.
What the keyframes buy you
The FL2VA graph binds a first frame and a last frame, so the motion between them is the variable you tune. The Ref2VA graph takes several references and lays story beats on a keyframe timeline, with 20 math/integer nodes assembling positions. If you want one clean move, the first is enough; if you need several beats on one path, the second carries the arithmetic.
What none of this proves
- No inference, no rendered output, no speed numbers.
- Weights and input media are not bundled. Check every licence before publishing what you make.
- Covers are promotional stills shipped with the video, not frames from these graphs, and they were not visually reviewed for this release.
Files
- Hugging Face:
AI-KSK/minimax-h3-keyframe-timeline-two-graphs-300 - ModelScope:
Sunjian520/minimax-h3-keyframe-timeline-two-graphs-300 - RunningHub: FL2VA · Ref2VA
- Civitai: two models built from the same files
Source video: https://www.youtube.com/watch?v=ZP3rffpcIXg · Chinese mirror: https://www.bilibili.com/video/BV1L4tn6WEVb
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