# MiniMax H3 Text to Video API

> MiniMax-(Hailuo)-Videomodell für lebendige Bewegungen, 5 bis 15 Sekunden, bis 4K.

MiniMax H3 generiert aus einem Prompt ausdrucksstarke Bewegungen von Figuren und Kamera. Es rendert nativ mit 480P oder 768P; die Optionen 2K und 4K skalieren ein 768P-Ergebnis hoch. Clips dauern 5 bis 15 Sekunden und unterstützen sechs Seitenverhältnisse; ein optionaler integrierter Prompt-Umschreiber bietet vier Aufwandsstufen, und Sie können eine eigene Audiospur als Tonspur festlegen.

- Model id: `minimax/h3/text-to-video`
- Made by: MiniMax
- Category: Text to Video
- Output: video
- Price: from $0.05 / second (5 s ≈ $0.25) (cheapest run $0.25 (250 API credits))
- Run: `POST https://api.doitong.ru/v1/run/minimax/h3/text-to-video`
- Quote: `POST https://api.doitong.ru/v1/quote/minimax/h3/text-to-video`
- Docs page: https://doitong.com/de/developers/models/minimax/h3/text-to-video

## Pricing

Price: **from $0.05 / second (5 s ≈ $0.25)** (the lowest tier; the quote prices your exact input). Billed per second of output (`duration`, default 5).

The full example input below costs $0.36 = 360 API credits (6 s × 60 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/minimax/h3/text-to-video` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  | 1 – 50000 characters | Textanweisungen zur Videogenerierung. |
| `duration` |  | integer | no | `5` | 5 – 15 | Videolänge, gemessen in Sekunden. |
| `resolution` |  | enum (string) | no | `2K` | `480P`, `768P`, `2K`, `4K` | Wähle die Auflösung des generierten Videos; 2K und 4K werden durch Upscaling einer 768P-Basis erzeugt. 480P oder 768P verwenden stattdessen native Generierung. |
| `seed` |  | integer \| null | no |  |  | Seed für die zufällige Generierung; wenn nicht angegeben, wird zufällig einer ausgewählt. |
| `prompt_expansion_mode` |  | string \| null | no | `balanced` |  | Aufwand für die Prompt-Umschreibung vor der Generierung: Wähle 'quality' für einen ausführlicheren Prompt, der bis zu etwa 30 Sekunden benötigt, oder 'fast' für ein Ergebnis in ungefähr einer Sekunde. Bei 'balanced' wird die Auswahl pro Anfrage getroffen; 'disabled' deaktiviert die Erweiterung. |
| `target_audio_url` |  | string (audio URL) \| null | no |  | ≥ 1 characters | Optionaler Ersatz-Soundtrack über eine HTTP(S)-URL oder eine Base64-Daten-URI; der Clip muss mindestens 2 Sekunden lang und darf höchstens 15 MB groß sein. Das bereitgestellte Audio ersetzt den generierten Soundtrack bei unveränderter Wiedergabegeschwindigkeit: Eine Überlänge wird am Ende entfernt, kürzere Clips erhalten Stille, bis sie der Videolänge entsprechen. Bei ungewöhnlich hohen Abtastraten kann ein Resampling auf 96 kHz erfolgen. |
| `aspect_ratio` |  | enum (string) | no | `16:9` | `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | Seitenverhältnis des Ausgabevideos. |

File parameters (`target_audio_url`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "prompt": "A white kitten chases a butterfly across a sunlit garden, gentle tracking camera, soft afternoon light"
}
```

A fuller example:

```json
{
  "prompt": "A white kitten chases a butterfly across a sunlit garden, gentle tracking camera, soft afternoon light",
  "duration": 6,
  "resolution": "768P"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.ru/v1/run/minimax/h3/text-to-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A white kitten chases a butterfly across a sunlit garden, gentle tracking camera, soft afternoon light",
    "duration": 6,
    "resolution": "768P"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.ru/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.ru/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/minimax/h3/text-to-video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A white kitten chases a butterfly across a sunlit garden, gentle tracking camera, soft afternoon light",
    "duration": 6,
    "resolution": "768P"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A white kitten chases a butterfly across a sunlit garden, gentle tracking camera, soft afternoon light",
    "duration": 6,
    "resolution": "768P",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/minimax/h3/text-to-video", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.ru/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "minimax/h3/text-to-video",
      "input": {
        "prompt": "A white kitten chases a butterfly across a sunlit garden, gentle tracking camera, soft afternoon light",
        "duration": 6,
        "resolution": "768P"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "minimax/h3/text-to-video",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 360,
    "usd": "0.36",
    "charged": 360,
    "refunded": 0
  },
  "input": {
    "prompt": "A white kitten chases a butterfly across a sunlit garden, gentle tracking camera, soft afternoon light",
    "duration": 6,
    "resolution": "768P"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    },
    "expanded_prompt": "string"
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | Vom Modell erzeugtes Video. |
| `expanded_prompt` | string \| null | Für das Modell erweiterter Prompt oder null, wenn kein erweiterter Text verfügbar ist. null tritt bei deaktivierter Erweiterung, unveränderter Erweiterung und intern von der gehosteten API des Modells verarbeiteter Erweiterung auf. |

## Related models

- [MiniMax H3 Image to Video](https://doitong.com/developers/models/minimax/h3/image-to-video.md) (`minimax/h3/image-to-video`): from $0.05 / second
- [MiniMax H3 Reference to Video](https://doitong.com/developers/models/minimax/h3/reference-to-video.md) (`minimax/h3/reference-to-video`): from $0.05 / second of output video
- [FLUX 3 Max Text to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/text-to-video.md) (`blackforestlabs/flux-3-max/text-to-video`): from $0.0425 / second of output video
- [Grok Imagine Video 1.5 Text to Video](https://doitong.com/developers/models/xai/grok-imagine-video/v1.5/text-to-video.md) (`xai/grok-imagine-video/v1.5/text-to-video`): from $0.08 / second
- [Kling 3.0 Pro Text to Video](https://doitong.com/developers/models/kling-video/v3/pro/text-to-video.md) (`kling-video/v3/pro/text-to-video`): from $0.112 / second
- [LTX 2.5 Pro Text to Video](https://doitong.com/developers/models/lightricks/ltx-2.5/text-to-video/pro.md) (`lightricks/ltx-2.5/text-to-video/pro`): from $0.12 / second
- [Seedance 2.0 Fast Text to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/fast/text-to-video.md) (`bytedance/seedance-2.0/fast/text-to-video`): from $0.113 / second
- [Seedance 2.0 Text to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/text-to-video.md) (`bytedance/seedance-2.0/text-to-video`): from $0.141 / second

## Links

- HTML page: https://doitong.com/developers/models/minimax/h3/text-to-video
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=minimax/h3/text-to-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/minimax/h3/text-to-video