Add second workflow batch for Z-Image, LTX, and MiniMax

models/minimax/minimax-h3-int8-r2v-community/README.md

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+# MiniMax H3 INT8 R2V Community
+
+## Summary
+
+Community `MiniMax H3` reference-to-video workflow built around `INT8` inference and an explicit acceleration stack.
+
+## Model Family
+
+- `minimax`
+
+## Status
+
+- `imported-only`
+
+## Source
+
+- Workflow repo: <https://huggingface.co/javawock7618/comfy-MiniMax-H3-workflows>
+- Workflow file: <https://huggingface.co/javawock7618/comfy-MiniMax-H3-workflows/resolve/main/MiniMax_int8_R2V-javano2608.5.json?download=true>
+- Original publisher: `javawock7618`
+- Date imported: `2026-08-08`
+
+## Developer notes
+
+- The repo describes this as part of an `INT8 FLF & Reference Video` collection.
+- The author explicitly targets:
+  - reduced VRAM usage
+  - faster inference
+  - improved memory efficiency
+- The documented acceleration stack includes:
+  - `Sol-Attn`
+  - `Spectrum`
+  - optional `Lightx2v LoRA`
+  - optional `MiniMax-H3-Turbo-Lora`
+  - optional latent upscaler
+
+## Our notes
+
+- This is the strongest low-VRAM-oriented MiniMax import we have so far because it is built around `INT8` from the start.
+- Still not guaranteed easy on a `3070`, but much more aligned with your constraints than generic heavyweight MiniMax examples.
+- Good candidate once you want to test whether MiniMax reference-driven video is remotely viable locally.
+
+## Required custom nodes
+
+- `ComfyUI-SolAttn_triton`
+- `ComfyUI-Spectrum-MiniMax-H3`
+- optional `ComfyUI-H3-Motion-Context` for related FLF workflows
+- optional `ComfyUI-MiniMaxH3_LatentUpscaler`
+- `Kijai/MiniMax-H3_comfy` for Lightx2v acceleration
+- optional `MiniMax-H3-Turbo-Lora-ComfyUI`
+
+## Notes
+
+- Best current MiniMax low-VRAM / INT8 reference-video workflow in the repo.
+- More of a carefully chosen experimental path than a guaranteed easy win.