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Alissonerdx/Minimax-H3-ComfyUI

sourceHugging Faceapache-2.0updated 12h agoView on Hugging Face

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MiniMax H3 LoRAs for ComfyUI

Experimental LoRAs for MiniMax H3, packaged for ComfyUI and tested mainly with the `ref2va` weights.

These are research models, not finished tools. Results vary substantially with the source clip, resolution, prompt and reference images.

Models

Model	Purpose	Trigger	Documentation	Workflow
`minimax_h3_lms_v1.0_r64`	Sharpness/detail enhancement using an aligned source-video guide	Fixed enhancement caption	LMS / Sharpness guide	`minimax_h3_lms_workflow.json`
`minimax_h3_style_transfer_v1.0_r64`	Transfer a visual style from an image or text description onto a video	`style_transfer:`	Style Transfer guide	`minimax_h3_style_transfer_workflow.json`
`minimax_h3_vfx_edit_v1.0_r128`	General prompt-directed VFX editing with an aligned source video	`vfx_edit:`	VFX Edit guide	`minimax_h3_vfxedit_wokflow.json`
`minimax_h3_vfx_edit_v1.0_r128_ffp`	Higher-resolution VFX Edit version with experimental first-frame propagation	`vfx_edit:`	VFX Edit and FFP guide	`minimax_h3_vfxedit_wokflow.json`
`minimax_h3_head_swap_v1.0_r32`	Experimental reference-image head replacement over an aligned source video	`head_swap:`	Head Swap guide and prompt template	`minimax_h3_head_swap_workflow.json`

Latent Upscaler experiment

`h3_upscaler_lms_v0.1` is an experimental latent-upscaler checkpoint trained for 2,000 steps with the same sharpness dataset used for the LMS LoRA. It was initialized from the LBH-123-AI/Minimax_h3_latent_Upscaler project and its `minimax_h3_latent_upscaler_3d_fp16.safetensors` checkpoint.

See the Latent Upscaler experiment guide for the two available paths, scope and limitations.

Common setup

Place LoRAs in ComfyUI/models/loras/. The included workflows list their required models and custom nodes inside the graph. Keep the output aspect ratio matched to the source clip and use an H3-supported frame count (17n + 5: 5, 22, 39, 56, 73, 90, 107, 124, ...).

The LMS, Style Transfer, VFX Edit and Head Swap models use an aligned source-video guide through MiniMaxH3AddGuide at frame_idx = 0. This is different from a native image/video reference: the guide shares the generated video's spatial and temporal grid.

License and credits

Base model credit to MiniMaxAI, ComfyUI-ready weights to Comfy-Org, and guide-latent training support to ostris/ai-toolkit and ComfyUI-AIToolkit-MiniMaxH3.