# MiniMax H3 Max

MiniMax H3 Max is a speed-optimized version of MiniMax H3 for text-to-video and start-and-end-frame video with native sound. MiniMax's own page quotes about 15 seconds to make a 5-second clip. In Sloosh it makes 5 to 15 second clips at up to 1080p, which suits quick drafts and iterations.

Web page: https://sloosh.ai/models/minimax-h3-max

[Use MiniMax H3 Max](https://sloosh.ai/studio/video?video-model=minimax-h3-max)

## Key facts in Sloosh

|   |   |
| --- | --- |
| Made by | Built on MiniMax H3 |
| Makes | video (with sound: always) |
| Inputs | text; start frame (optional); end frame (optional); no reference images, videos or audio |
| Length | any whole number of seconds from 5 to 15 |
| Resolution | 480p, 768p (default), 1080p |
| Aspect ratios | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 |
| Prompt limit | 50,000 characters |

## Best for

- Fast iteration: MiniMax calls it "Purpose-built for high-speed video generation", "About 15s for a 5s video; about 40s for a 15s video" ([MiniMax Design: H3 Max](https://design.minimax.io/tools/minimax-h3-max)).
- Animating a start frame toward an end frame: MiniMax's page lists opening and ending frames ([MiniMax Design: H3 Max](https://design.minimax.io/tools/minimax-h3-max)).
- Drafts at 768p or 1080p before a 2K or 4K final on MiniMax H3 ([Sloosh docs](https://sloosh.ai/docs/minimax-h3-max.md)).

## How to use MiniMax H3 Max in Sloosh

1. Open [Video](https://sloosh.ai/studio/video?video-model=minimax-h3-max) and pick MiniMax H3 Max in the model chip.
2. Optionally add a start frame, and an end frame.
3. Write what changes from the start frame, with one camera move and a "Sound:" line.
4. Set length (5 to 15 seconds), resolution (up to 1080p), aspect ratio and, if you like, a seed.
5. Check the price on the Generate button, then generate.

## MiniMax H3 Max prompting tips

- With a start frame, don't describe the frame again: describe what changes from it ([Sloosh docs](https://sloosh.ai/docs/minimax-h3-max.md)). MiniMax's guide treats the first frame as "the actual first frame of the video" and develops forward from it ([MiniMax prompt guide](https://huggingface.co/MiniMaxAI/MiniMax-H3/blob/main/docs/VIDEO_PROMPT_WRITING_GUIDE_base_en.md)).
- With start and end frames, describe the motion path; use multiple shots only when you ask for them ([MiniMax prompt guide](https://huggingface.co/MiniMaxAI/MiniMax-H3/blob/main/docs/VIDEO_PROMPT_WRITING_GUIDE_base_en.md)).
- Camera moves in plain English with size and speed, one per continuous shot ([Sloosh docs](https://sloosh.ai/docs/minimax-h3-max.md)).
- Keep "Sound:" and "Music:" on separate lines; every clip has sound ([Sloosh docs](https://sloosh.ai/docs/minimax-h3-max.md)).

## MiniMax H3 Max example prompts

**Prompt 1**

```text
One continuous shot, no cuts. Starting from this photo of a closed laptop on a desk, the lid opens and the screen lights the room. The camera pushes in slowly. Sound: a soft hinge creak, a startup chime. No music.
```

**Prompt 2**

```text
From the start frame of a bare tree to the end frame of the same tree in blossom: the branches fill with pink flowers over the clip as the camera holds still. Sound: light wind, birds. Music: gentle harp.
```

**Prompt 3**

```text
A paper boat drifts down a rain gutter in a city street. The camera tracks beside it at water level. Sound: running water, distant traffic. Music: playful plucked strings.
```

## How it compares in Sloosh

|   | H3 Max | H3 Max Turbo | MiniMax H3 | H3 Max Reference |
| --- | --- | --- | --- | --- |
| Inputs | text, start/end frame | text, start/end frame, 1 audio clip | text, start/end frame | references or start frame |
| Max resolution | 1080p | 1080p | 4K | 1080p |
| Length | 5 to 15 s | 5, 10, 15 s | 5 to 15 s | 5 to 15 s |
| Sound | always | always | always | always |

H3 Max gives a different take on a prompt, not a sharper copy of H3 ([Sloosh docs](https://sloosh.ai/docs/minimax-h3-max.md)).

## Where else it runs

MiniMax offers it in MiniMax Design ([MiniMax Design: H3 Max](https://design.minimax.io/tools/minimax-h3-max)).

## Frequently asked questions

### MiniMax H3 vs MiniMax H3 Max: which should I use?

Use H3 Max for quick drafts and clips where 1080p is enough. Use MiniMax H3 for 2K or 4K.

### How fast is MiniMax H3 Max?

MiniMax quotes about 15 seconds for a 5-second video and about 40 seconds for a 15-second video, varying with settings and load.

### What resolution does MiniMax H3 Max make?

480p, 768p and 1080p in Sloosh, starting at 768p.

### Can MiniMax H3 Max use reference images?

No. For the faster model guided by references, pick MiniMax H3 Max Reference.

### Does it make sound?

Yes, always.

## Related

- Models: [MiniMax H3](https://sloosh.ai/models/minimax-h3), [MiniMax H3 Max Turbo](https://sloosh.ai/models/minimax-h3-max-turbo), [MiniMax H3 Max Reference](https://sloosh.ai/models/minimax-h3-max-reference), [Seedance 2.0 Fast](https://sloosh.ai/models/seedance-2.0-fast)
- Docs: [MiniMax H3 Max](https://sloosh.ai/docs/minimax-h3-max.md)

## Sources

- [MiniMax Design: MiniMax H3 Max](https://design.minimax.io/tools/minimax-h3-max)
- [MiniMax H3 prompt writing guide](https://huggingface.co/MiniMaxAI/MiniMax-H3/blob/main/docs/VIDEO_PROMPT_WRITING_GUIDE_base_en.md)
- [Sloosh docs: MiniMax H3 Max](https://sloosh.ai/docs/minimax-h3-max)