MiniMax H3

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MiniMax H3

Prompt Writing Skill

Install the H3 prompt writing skill — one of nine skills bundled with this repository:

bash
npx skills add https://github.com/MiniMax-AI/MiniMax-H3 --skill h3-prompt-writing

It ships with two prompt guides under skills/h3-prompt-writing/references/: base-en.txt for text/keyframe modes and ref-en.txt for full-reference (Ref2VA) mode.

Agent compatibility: h3-prompt-writing is a plain Markdown + reference-file skill with no external API calls, so it works in Claude Code, the Claude Agent SDK, Cursor, Windsurf, OpenAI-based agents/Codex, LangChain, or any other harness that can read a SKILL.md and local files. The bundled skills/h3-prompt-writing/agents/openai.yaml only adds optional UI metadata (display name, description, default prompt) for the ChatGPT/Codex skills UI, per OpenAI's skill spec — it does not limit the skill to OpenAI agents.

The remaining eight are style-specific video generation skills built for the MiniMax Hub's canvas workflow (hub_generate_video, hub_generate_image, canvas nodes, choice cards, etc.) and are not portable to generic agent harnesses:

    minimalist-product-ad-generator
    3d-animation-short-generator
    papercraft-stop-motion-explainer
    brand-promo-video-generator
    music-video-subtitle-generator
    co-op-game-intro-generator
    paper-collage-explainer-generator
    handdrawn-live-video-generator

Online API
Use MiniMax-H3 directly via API. 
- Global: platform.minimax.io | CN: platform.minimaxi.com

Online App
Use MiniMax-H3 directly via App.
- WebApp Global: hailuoai.video | CN: hailuoai.com
- Desktop Global: hub.minimax.io | CN: hub.minimaxi.com

System Overview
MiniMax H3 is a general-purpose, omni-modal generative system. It supports unified understanding of multimodal contexts composed of text, images, video, and audio, and can generate video with native stereo audio at resolutions up to 2K and durations of up to 15 seconds. Thanks to its task-generalization-oriented system design, H3 already possesses broad multimodal context understanding and generation capabilities at the pre-training stage, enabling outstanding performance in following complex multimodal instructions.

H3 supports the following input and output specifications:

| Category | Specification |
| Output duration | 4–15 seconds |
| Output aspect ratio | Supports a wide range of aspect ratios, including but not limited to 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16 |
| Output resolution | Supports various resolution dimensions. The shorter side is set to 768 pixels by default. 2K \| generation can be achieved with H3-Regenerate-2K |
| Output frame rate | 24 FPS |
| Output audio | 32 kHz stereo |
| Supported dialogue languages | Stable support for 11 languages: Arabic, Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, and Spanish. Additional languages are also supported to varying degrees |

Model Variants and Input Specifications

| Model Variant | Input Mode | Specifications |
| H3-Base-FL2VA | First-and-last-frame mode | Supports zero, one, or two input images. - No image input: Text-to-video mode - One image input: First-frame-to-video

……（后略，见原文）