# MiniMax H3 Reference to Video LoRA API

> H3 viðmiðun-í-myndband með LoRA, sem tekur við allt að 9 myndum, 3 myndböndum og 3 hljóðbútum

Myndar myndband úr viðmiðum sem eru nefnd í kvaðningunni sem Image 1, Video 1, Audio 1 og svo framvegis. Tekur við allt að 9 myndum, 3 myndböndum og 3 hljóðbútum, að hámarki 12 skrám samtals. Krefst 1 til 3 `loras`. Lengd er 5 til 15 sekúndur, stærðarhlutföll ná frá adaptive til 21:9 og 9:16 og upplausn er allt að 4K.

- Model id: `minimax/h3/reference-to-video/lora`
- Made by: MiniMax
- Category: Reference to Video
- Output: video
- Price: from $0.0625 / second (5 s ≈ $0.313) (cheapest run $0.313 (313 API credits))
- Run: `POST https://api.doitong.ru/v1/run/minimax/h3/reference-to-video/lora`
- Quote: `POST https://api.doitong.ru/v1/quote/minimax/h3/reference-to-video/lora`
- Docs page: https://doitong.com/is/developers/models/minimax/h3/reference-to-video/lora

## Pricing

Price: **from $0.0625 / second (5 s ≈ $0.313)** (the lowest tier; the quote prices your exact input). Billed per second of output (`duration`, default 15).

Price rules (the first rule that matches the input wins; a parameter you leave out counts as its default):

- When `resolution` = 768P: $0.075 (75 API credits) / second
- When `resolution` = 2K: $0.1625 (162.5 API credits) / second
- When `resolution` = 4K: $0.20 (200 API credits) / second

The full example input below costs $0.813 = 813 API credits (5 s × 162.5 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/reference-to-video/lora` 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

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  | 1 – 50000 characters | Leiðbeiningar fyrir myndbandsgerð með tilvísunum sem eru auðkenndar eftir gerð og staðsetningu í hverjum tilvísanalista, með merkjum á borð við Audio 1, Video 1, Image 1, Image 2 og svo framvegis. |
| `duration` |  | integer | no | `5` | 5 – 15 | Lengd myndbands, mæld í sekúndum. |
| `resolution` |  | enum (string) | no | `2K` | `480P`, `768P`, `2K`, `4K` | Veldu upplausn myndaðs myndbands; 2K og 4K fást með uppstærðingu á 768P-grunni. Val á 480P eða 768P notar í staðinn upprunalega efnisgerð. |
| `seed` |  | integer \| null | no |  |  | Sáð fyrir slembna efnisgerð; ef það er sleppt er eitt valið af handahófi. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Virkjun öryggisathugunar; true virkjar athugun. |
| `prompt_expansion_mode` |  | string \| null | no | `balanced` |  | Vinnsla við endurskrifun kvaðningar fyrir efnisgerð: veldu 'quality' fyrir ríkari kvaðningu sem tekur allt að um 30 sekúndur eða 'fast' fyrir niðurstöðu á um það bil sekúndu. Með 'balanced' er valið fyrir hverja beiðni; 'disabled' slekkur á útvíkkun. |
| `aspect_ratio` |  | enum (string) | no | `adaptive` | `adaptive`, `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | Stærðarhlutfall úttakmyndbandsins. |
| `reference_image_urls` | `images` | array of image URL | no |  | ≤ 9 items | Slóðir á tilvísunarmyndir fyrir myndefni eða stíl, með sameiginlegu hámarki 12 skráa með öllum myndbands- og hljóðtilvísunum. Auðkenndu þessar myndir í kvaðningunni eftir stöðu í listanum með Image 1, Image 2 og síðari merkjum. |
| `reference_video_urls` |  | array of video URL | no |  | ≤ 3 items | Slóðir á tilvísunarmyndbönd fyrir hreyfingu eða annað, auðkennd eftir stöðu í kvaðningunni með Video 1, Video 2 og síðari merkjum. Sameiginlegt hámark fyrir myndir, myndbönd og hljóð er 12 skrár; hvert myndband verður að vera 2–15 sekúndur og samanlagt að hámarki 15 sekúndur. |
| `reference_audio_urls` |  | array of audio URL | no |  | ≤ 3 items | Gefðu upp tilvísunarhljóð sem slóðir og auðkenndu bútana í kvaðningunni með Audio 1, Audio 2 og síðari merkjum. Hver bútur verður að vera 2–15 sekúndur og heildarhljóðið að hámarki 15 sekúndur. Hægt er að gefa upp hvaða gerð tilvísunar sem er ein sér eða saman, með sameiginlegu hámarki 12 skráa. |
| `loras` |  | array of object {path, weight_name, scale} | yes |  | 1 – 3 items | Listi yfir LoRA-millistykki sem á að nota á transformerinn. |
| `loras[].path` |  | string | yes |  |  | Staðsetning LoRA-þyngda, gefin upp sem slóð eða HuggingFace-geymslukenni á forminu owner/repo. |
| `loras[].weight_name` |  | string \| null | no |  |  | Tilgreindu skráarheiti LoRA-þyngdar aðeins til að velja milli margra LoRA-millistykkja í HuggingFace-geymslu sem er auðkennd með `path`. |
| `loras[].scale` |  | number | no | `1` | 0 – 4 | Styrkur LoRA-áhrifa, frá 0.0 til 4.0. |

File parameters (`images`, `reference_video_urls`, `reference_audio_urls`) 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 red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "loras": [
    {
      "path": "https://example.com/your-file.safetensors"
    }
  ]
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "loras": [
    {
      "path": "https://example.com/your-file.safetensors"
    }
  ]
}
```

## 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/reference-to-video/lora?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "loras": [
      {
        "path": "https://example.com/your-file.safetensors"
      }
    ]
  }'

# 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/reference-to-video/lora?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "loras": [
      {
        "path": "https://example.com/your-file.safetensors"
      }
    ]
  }),
});
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 red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "loras": [
        {
            "path": "https://example.com/your-file.safetensors",
        },
    ],
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/minimax/h3/reference-to-video/lora", 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/reference-to-video/lora",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
        "loras": [
          {
            "path": "https://example.com/your-file.safetensors"
          }
        ]
      },
      "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/reference-to-video/lora",
  "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": 813,
    "usd": "0.813",
    "charged": 813,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "loras": [
      {
        "path": "https://example.com/your-file.safetensors"
      }
    ]
  },
  "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} | Myndband sem líkanið býr til. |
| `expanded_prompt` | string \| null | Útv\|\|\|\|un kvaðning tilbúin fyrir líkanið, eða null ef enginn útvíkkaður texti er tiltækur. null á við þegar útvíkkun er óvirk, breytir engu eða er meðhöndluð innbyrðis af hýstu API líkaninu. |

## Related models

- [MiniMax H3 Text to Video LoRA](https://doitong.com/developers/models/minimax/h3/text-to-video/lora.md) (`minimax/h3/text-to-video/lora`): from $0.0625 / second
- [MiniMax H3 Image to Video LoRA](https://doitong.com/developers/models/minimax/h3/image-to-video/lora.md) (`minimax/h3/image-to-video/lora`): from $0.0625 / second
- [Seedance 2.0 Fast Reference to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/fast/reference-to-video.md) (`bytedance/seedance-2.0/fast/reference-to-video`): from $0.113 / second
- [Seedance 2.0 Reference to Video](https://doitong.com/developers/models/bytedance/seedance-2.0/reference-to-video.md) (`bytedance/seedance-2.0/reference-to-video`): from $0.141 / second
- [Wan 3.0 Reference to Video](https://doitong.com/developers/models/alibaba/wan-3.0/reference-to-video.md) (`alibaba/wan-3.0/reference-to-video`): from $0.05 / second
- [H3 Max Reference to Video](https://doitong.com/developers/models/minimax/h3-max/reference-to-video.md) (`minimax/h3-max/reference-to-video`): from $0.05 / second of output video
- [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
- [Alibaba V2.6 · Reference to Video · Flash](https://doitong.com/developers/models/wan/v2.6/reference-to-video/flash.md) (`wan/v2.6/reference-to-video/flash`): from $0.05 / second of output video

## Links

- HTML page: https://doitong.com/developers/models/minimax/h3/reference-to-video/lora
- 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/reference-to-video/lora
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/minimax/h3/reference-to-video/lora