MiniMax-H3 INT8 ConvRot
Converted MiniMax-H3 weights for ComfyUI-RH-MiniMax-H3. This repository is a complete ComfyUI bundle: INT8 ConvRot DiT / text-encoder weights, merged VAEs, FL2VA / Ref2VA configs, and optional turbo LoRAs.
The same package is mirrored on ModelScope. Download from one source. The full snapshot is about 99 GiB; keep at least 120 GiB free.
Run Online and API Access
If you do not want to download the full 99 GiB model bundle locally, you can try MiniMax-H3 related workflows online on RunningHub, or integrate RunningHub AI app / workflow APIs into your own product.
- MiniMax-H3 RunningHub Online Demo
- MiniMax-H3 RunningHub AI Generator
- RunningHub API Documentation
- RunningHub API Docs CN
- ComfyUI-RH-MiniMax-H3 Plugin
The online demo is designed for users who want to quickly experience MiniMax-H3 video and audio generation without setting up a local GPU environment. You can first preview and run the public model on RunningHub, then choose to download the full weights locally or connect similar workflows to your product through RunningHub API.
Want to try it instantly? Open the MiniMax-H3 RunningHub AI Generator and run it online. Want to integrate video / audio generation into your product? Start with the RunningHub API Documentation.
RunningHub API supports model APIs, AI app APIs, workflow APIs, and LLM APIs. For MiniMax-H3 video / audio generation workflows, the recommended task flow is:
Submit task -> get taskId -> check task status -> retrieve generated result
Recommended use cases:
- Run MiniMax-H3 video / audio generation workflows online
- Add text-to-video, image-to-video, or video-to-audio generation to your product
- Provide creators, developers, and teams with no-local-setup generative AI workflows
- Build automated video generation, content production, or multimodal applications with RunningHub API
Contents
| File | Size | Role |
|---|---|---|
MiniMax-H3-FL2VA-int8_convrot.safetensors | 31.65 GiB | FL2VA / T2VA / V2A DiT |
MiniMax-H3-Ref2VA-int8_convrot.safetensors | 31.65 GiB | Ref2VA DiT |
qwen3-vl-32b-int8_convrot.safetensors | 25.28 GiB | Qwen3-VL text encoder |
MiniMax-H3-video_vae.safetensors | 4.85 GiB | Video VAE |
MiniMax-H3-audio_vae.safetensors | 0.56 GiB | Audio VAE |
minimax_h3_fl2v_turbo_4step_v0.1.safetensors | 1.29 GiB | Optional FL2VA / T2VA 4-step turbo |
minimax_h3_fl2v_turbo_4step_v1.0_768p_bf16.safetensors | 1.29 GiB | Optional FL2VA / T2VA 4-step turbo for 768p |
minimax_h3_fl2v_turbo_8step_v1.0_bf16.safetensors | 1.29 GiB | Optional FL2VA / T2VA 8-step turbo |
minimax_h3_ref2v_turbo_4step_v0.1_bf16.safetensors | 1.29 GiB | Optional Ref2VA 4-step turbo |
FL2VA/ | configs | FL2VA tokenizer, processor, and component configs |
Ref2VA/ | configs | Ref2VA tokenizer, processor, and component configs |
Install into ComfyUI
ComfyUI/
└── models/
└── MiniMax-H3-INT8-CONVROT/
├── MiniMax-H3-FL2VA-int8_convrot.safetensors
├── MiniMax-H3-Ref2VA-int8_convrot.safetensors
├── qwen3-vl-32b-int8_convrot.safetensors
├── MiniMax-H3-video_vae.safetensors
├── MiniMax-H3-audio_vae.safetensors
├── minimax_h3_fl2v_turbo_4step_v0.1.safetensors
├── minimax_h3_fl2v_turbo_4step_v1.0_768p_bf16.safetensors
├── minimax_h3_fl2v_turbo_8step_v1.0_bf16.safetensors
├── minimax_h3_ref2v_turbo_4step_v0.1_bf16.safetensors
├── FL2VA/
└── Ref2VA/
cd /path/to/ComfyUI
python3 -m pip install -U huggingface_hub
hf download Gluttony10/MiniMax-H3-INT8-CONVROT \
--local-dir ./models/MiniMax-H3-INT8-CONVROT
China users can use the ModelScope mirror:
cd /path/to/ComfyUI
python3 -m pip install -U modelscope
modelscope download --model Gluttony10/MiniMax-H3-INT8-CONVROT \
--local_dir ./models/MiniMax-H3-INT8-CONVROT
Re-run the same command to resume or update an interrupted download. On a
high-bandwidth machine with at least 64 GiB RAM, prefix hf download with
HF_XET_HIGH_PERFORMANCE=1.
The plugin auto-detects this complete converted bundle. The legacy
ComfyUI/models/MiniMax-H3 directory remains supported.
Optional Turbo LoRA
Select one turbo LoRA in the model loader for fewer sampling steps. Leave the LoRA empty to run the base converted weights.
| File | Typical use |
|---|---|
minimax_h3_fl2v_turbo_4step_v0.1.safetensors | FL2VA / T2VA 4-step turbo |
minimax_h3_fl2v_turbo_4step_v1.0_768p_bf16.safetensors | FL2VA / T2VA 4-step turbo for 768p |
minimax_h3_fl2v_turbo_8step_v1.0_bf16.safetensors | FL2VA / T2VA 8-step turbo |
minimax_h3_ref2v_turbo_4step_v0.1_bf16.safetensors | Ref2VA 4-step turbo |
Plugin
Install ComfyUI-RH-MiniMax-H3
and use the nodes under RunningHub/MiniMax H3:
| Node | Purpose |
|---|---|
RHMiniMaxH3ModelLoader | Load the FL2VA / Ref2VA DiT and optional LoRA |
RHMiniMaxH3TextEncoderLoader | Load the Qwen3-VL text encoder |
RHMiniMaxH3VAELoader | Load the video and audio VAEs |
RHMiniMaxH3VideoGen | T2VA / FL2VA / V2A |
RHMiniMaxH3RefGen | Ref2VA with ordered image, video, and audio references |
Example workflows:
License
Converted weights follow the upstream MiniMax-H3 Community License. The ComfyUI plugin code is Apache-2.0.