Understand the project
Practical overview
When it fits
Use it when you want a local, timeline-based preproduction and prompt-authoring workspace before sending a MiniMax H3 reference-to-video job to ComfyUI.
Who it is for
- Video creators planning sequences from image, video and audio references.
- Users building shot-by-shot MiniMax H3 prompts before rendering through ComfyUI.
- Teams or individuals configuring local runtimes and model workflows for AI video production.
Documented uses
- Organize visual and audio assets for a video project.
- Lay out shots, dialogue, markers, ending holds and prompts on timeline tracks.
- Generate MiniMax H3 Ref2VA prompts and hand selected assets and parameters to ComfyUI.
- Use a virtual media pool to manage logical assets beyond the default per-segment execution slots.
Before you choose
Requirements & limits
- It is a desktop application; rendering is handed off to a separately installed ComfyUI instance.
- The default segment workflow has execution slots for nine images, three reference videos and three independent audio clips; the virtual media pool can hold additional logical assets.
- Model weights and runtime components are not bundled in the repository and must be prepared separately.
- The Source Video Cast Remake route has distinct workflow and model requirements from the default Ref2VA path.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Source-based practical guide
Prepare the Studio runtime and launch the desktop app
Complete the documented first-time setup sequence and start the Studio.
Before you start
- A local copy of the project repository.
- The separately supplied Studio runtime and required models.
- A Windows environment for the documented batch launcher.
Steps
Complete the README's Step 1 deployment for the Studio runtime, Qwen3-TTS and VoxCPM2.
Plan and complete the documented host/client deployments for ACE-Step music, SoulX-Singer and audio separation as needed.
From the project root, run
.\run_h3_prompt_studio.bat.
Expected outcome
The documented startup path launches the local Studio after its setup stages are complete.
Guide limitations
- The repository does not include the Python runtime, FFmpeg, model weights, ComfyUI checkpoints or generated videos.
- The README requires users to prepare the applicable models and deployments before starting.
Evidence and transparency
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 18 October 2026
- Original website title
- karuvanan/MiniMax-H3-Director-Cut-Studio · Official homepage title · retained in its source language