Import same-day MiniMax H3 workflows

2026-09-07 18:09:23 +00:00
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+# MiniMax H3 LongVideos
+
+## Summary
+
+Same-day MiniMax H3 long-video workflow with synced audio and shot chaining.
+
+## Model Family
+
+- `minimax`
+
+## Status
+
+- `imported-only`
+
+## Source
+
+- Model card: <https://huggingface.co/Smite79/MiniMax-H3-Longvideos>
+- Workflow file: <https://huggingface.co/Smite79/MiniMax-H3-Longvideos/resolve/main/workflows/H3%20LongVideos%20Demo%20Workflow.json?download=true>
+- Original publisher: `Smite79`
+- Date imported: `2026-09-07`
+
+## Developer notes
+
+- The workflow is built around the `H3 LongVideos` node pack.
+- It turns a paragraph-by-paragraph prompt into chained shots and supports `plan_only` for a non-rendering split check.
+- The source README expects ComfyUI `0.31+` with native MiniMax-H3 support.
+
+## Our notes
+
+- This is the most immediately useful MiniMax H3 import today because it packages the long-form, audio-synced path instead of a bare checkpoint.
+- The default settings are already aimed at practical use: `8` steps, `res_multistep`, `shift_video/shift_audio` at `12/3`, and shot chaining.
+- Still heavy for an RTX 3070 with `8 GB` VRAM, but this is the right kind of heavy if you want a real H3 workflow.
+
+## Required custom nodes
+
+- `Smite79/MiniMax-H3-LongVideos`
+- current ComfyUI MiniMax-H3 support
+- `pysssss` for the text output panels
+
+## Required models
+
+- `MiniMax-H3` diffusion model
+- `MiniMax-H3` text encoder
+- `MiniMax-H3` video VAE
+- `MiniMax-H3` audio VAE
+- optional `MiniMax-H3` PDD Acc LoRA for the low-step path
+
+## Notes
+
+- Best first try if you want a reusable local MiniMax H3 workflow rather than another checkpoint.