# MiniMax H3 Reference to Video LoRA Trainer API

> ᡶᡠᠯᡤᡳᠶᡝᠨ ᡳ ᡶᡳᠯᠮᡠ ᡩᡝ LoRA ᡥᡠᠯᡤᠠᠨ᠈ ᡳᠯᡤᠠᠨ ᡳ LoRA ᡩᡝ ᡝᠮᡤᡳᠨ ᡳ ᠵᠠᠯᡠ ᡩᡝ ᡤᡝᠯᡳᠨ ᠠᡵᠠᠮᡝ ᠪᡳᠮᠪᡳ

ᠵᡠᠯᡥᡝ ᡳ ᡶᡳᠯᠮᡠ ᡳ ᠵᡠᠯᡥᡝ ᠪᡝ zip ᡩᡝ ᡠᠯᡥᡳᠶᠠᠯᠠᠮᡝ LoRA ᠪᡝ ᡤᡝᠨᡝᠮᠪᡳ᠈ ᡶᡠᠯᡤᡳᠶᡝᠨ ᡳ ᡝᠮᡤᡳᠨ ᠪᡝ ᡶᡳᠯᠮᡠ ᡩᡝ ᡠᠯᡥᡳᠶᠠᠯᠠᠮᡝ ᠪᡳᠮᠪᡳ᠉ `reference_conditioning_p` ᡶᡠᠯᡤᡳᠶᡝᠨ ᠪᡝ ᡴᡝᠮᡠᠨ ᡩᡝ ᠠᡵᠠᠮᡝ ᠰᠠᠶᠠᠨ ᠪᡳᠮᠪᡳ᠈ `resume_from_lora_url` ᠠᠮᠪᠠᠨ ᡤᡝᠨᡝᡥᡝ LoRA ᡩᡝ ᠵᠠᠯᠠᠮᡝ ᡤᡝᠨᡝᠮᠪᡳ᠉ `rank`᠈ `number_of_steps`᠈ `number_of_frames`᠈ `frame_rate` ᡝᠮᡝ `aspect_ratio` ᠪᡝ ᠵᠠᠰᠠᠮᡝ ᠪᡳᠮᠪᡳ᠉ ᡥᡠᠯᡤᠠᠨ ᡝᠮᡝ config ᠪᡝ ᡤᠠᡵᡤᠠᠮᡝ ᠪᡳᠮᠪᡳ᠉

- Model id: `minimax/h3/ref2va/trainer`
- Made by: MiniMax
- Category: Training
- Output: file
- Price: $0.015 / step (cheapest run $30.00 (30000 API credits))
- Run: `POST https://api.doitong.com/v1/run/minimax/h3/ref2va/trainer`
- Quote: `POST https://api.doitong.com/v1/quote/minimax/h3/ref2va/trainer`
- Docs page: https://doitong.com/mnc/developers/models/minimax/h3/ref2va/trainer

## Pricing

Price: **$0.015 / step**. Billed per training step (`number_of_steps`).

The full example input below costs $30.00 = 30000 API credits (2000 steps × 15 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.com/v1/quote/minimax/h3/ref2va/trainer` 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 |
|---|---|---|---|---|---|---|
| `training_data_url` |  | string | yes |  |  | ᠰᡠᡵᡤᠠᡵᠠ ᠰᡠᠨᡤᠠ ᡳ ZIP ᡩᡝᠨᠰᡝ ᡳ URL; ᡤᠠᠳᠠᠨ ᠴᠠᠯᡳ ᠪᡳᠰᡳᡵᡝ ᡩᠠᡳᡨᠠ ᠪᡠᠯᡝᠨ ᡤᡝᠯᡳ ᡤᠠᠳᠠᠨ ᠰᡠᠨᡤᠠ ᠰᡠᠸᠠᠯᡳᠶᠠᡥᠠ ᠰᡠᡵᡤᠠᡵᠠ ᡩᡝᠨᠰᡝ ᠪᡝ ᠠᠯᡳᡵᠠᡴᡡ, ᡨᡝᡵᡝ ᡨᡠᡵᡤᡠᠨᡩᡝ ᡤᠠᠳᠠᠨ ᠪᡝ ᠯᠠᠴᡳᠯᠠᡵᠠ ᡩᠠᠯᡳᠪᡠᡥᠠ ᠪᡳᡨᡥᡝ ᠣᠪᡠᠮᡝ ᠪᡠᡵᡝ ᡠᠴᡠᡵᡳ᠉ ᠰᠣᠩᡤᠣᠮᡝ ᠨᠣᠩᡤᡳᡵᡝ ᠪᡳᡨᡥᡝ ᡨᠠᠴᡳᠨ ᠮᡝᡳᡨᡝᠨ ᡳ ᡩᠠ ᡤᡝᠪᡠ ᠪᡝ ᠠᡩᠠᠯᡳ ᠪᠠᡳᡨᠠᠯᠠᠮᠪᡳ: `clip01.txt` ᠠᡩᠠᠯᡳ ᡤᡳᠰᡠᡵᡝᡥᡝ ᠪᡳᡨᡥᡝ, ᡤᡝᠯᡳ `ref_1` ᠴᡳ `ref_4` ᡩᡝ ᡳᠰᡳᡨᠠᠯᠠ ᠰᡳᡵᡝᠨ ᠠᡵᠠᡥᠠ ᠯᠠᠴᡳᠯᠠᡵᠠ ᠪᡳᡨᡥᡝ, ᡤᡝᠪᡠ ᠣᠴᡳ `clip01.ref_1.<ext>` ᠴᡳ `clip01.ref_4.<ext>` ᡩᡝ ᡳᠰᡳᠮᠪᡳ; ᠯᠠᠴᡳᠯᠠᡵᠠ ᡩᠠᠯᡳᠪᡠᡥᠠ ᠪᡳᡨᡥᡝ ᠠᡴᡡ ᠣᠴᡳ, ᠮᡝᡳᡨᡝᠨ ᡳ ᡝᠮᡠ ᡶᡳᠯᡝᠮᡝ ᠪᡝ ᠪᡝᠶᡝ ᡳ ᠯᠠᠴᡳᠯᠠᡵᠠ ᠣᠪᡠᠮᠪᡳ᠉ `<ext>` ᡳ ᠯᠠᠴᡳᠯᠠᡵᠠ ᠠᡵᠪᡠᠨ ᠪᡝ ᡨᠣᡴᡨᠣᠪᡠᠮᠪᡳ: ᡤᠠᠳᠠᠨ (.png/.jpg/.jpeg), ᡤᡳᠰᡠᠨ (.wav/.mp3/.flac/.m4a/.ogg/.aac), ᡝᡳᡨᡝᠨ ᠰᡠᠨᡤᠠ (.mp4/.mov/.avi/.mkv/.webm), ᡨᡝᡵᡝ ᡳ ᡤᡳᠰᡠᠨ ᠪᡝ ᡤᡝᠯᡳ ᡤᡳᠰᡠᠨ ᡳ ᠯᠠᠴᡳᠯᠠᡵᠠ ᠣᠪᡠᠮᠪᡳ᠉ ᠰᡠᡵᡤᠠᡵᠠ ᠮᡝᡳᡨᡝᠨ .mp4, .mov, .avi, ᡤᡝᠯᡳ .mkv ᠪᡝ ᠠᠯᡳᠮᠪᡳ; ᡴᠣᠮᠰᠣ ᠣᠴᡳ 10 ᠮᡝᡳᡨᡝᠨ ᠪᡝᠯᡥᡝᠪᡠ, ᠯᠠᠪᡩᡠ ᠣᠴᡳ ᡠᠯᡝᠮᡝ ᠰᠠᡳᠨ᠉ |
| `rank` |  | enum (integer) | no | `32` | `8`, `16`, `32`, `64`, `128` | LoRA ᡳ ᡝᡵᡝᠮᡝ ᡳ ᡩᠠᠯᡳᠮᡝ ᡩᠠᠯᡳᠮᡝ ᡳ ᠵᡠᠯᡤᠠᠨ. |
| `number_of_steps` |  | integer | no | `2000` | 1 – 15,000 | ᡩᠠᠯᡳᠮᡝ ᡳ ᡩᠠᠯᡵᡝ ᡳ ᡩᡠᠮᡝ. |
| `learning_rate` |  | number | no | `0.0002` | 0.000001 – 1 | ᠪᡠᠶᡝᡵᡝ ᠰᡠᠶᡝᠮᡝᡳ ᠮᡝᡵᡤᡝᠨᡳ ᠵᠠᠯᠠᡵᠠᠨᡳ ᠵᠠᠯᠠᡵᠠᠮᠪᡳ᠉ |
| `number_of_frames` |  | integer | no | `73` | 22 – 124 | ᡝᠮᡠ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᠰᡠᠨᡤᠠᠨᡳ ᡶᡳᠯᡝᠮᡝ ᠴᠣᠣᡥᠠ; 17 ᡩᡝ ᡩᡠᠯᡳᠮᡝ ᠪᡳᠰᡳᠨ 5 ᠪᡝ ᠪᡳᠰᡳᠨᡳ ᠪᡠᠶᡝᠮᡝᠮᡝ ᠪᡳ᠉ ᡝᠮᡠ 22, 39, 56, 73, 90, 107, 124. |
| `frame_rate` |  | integer | no | `24` | 8 – 60 | ᠰᡠᠨᡤᠠᡳ ᠵᠠᠯᠠᡵᠠᠮᠪᡠᡵᡝ ᡶᡳᠯᡝᠮᡝᡳ ᠵᠠᠯᠠᠨ᠉ |
| `resolution` |  | enum (string) | no | `medium` | `low`, `medium`, `high` | ᡩᠠᠯᡳᠮᡝ ᡳ ᠵᠠᠯᠠᠨ. ᠵᠠᠯᠠᠨ ᡳ ᠠᠯᡳᠮᡝ ᡳ ᠮᡝᠮᡝᠨᡳ ᡩᠠᠯᡳᠮᡝ. |
| `aspect_ratio` |  | enum (string) | no | `16:9` | `21:9`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | MiniMax H3 API ᠵᠠᠯᡳᠨ ᡳᠯᡤᠠᠨᡳ ᠪᡝ ᠰᡝᠮᠪᡳ ᠠᠰᡳᠯᠠᠮᡝ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᠵᠠᠯᠠᠨᡳ ᠠᡵᠠᠮᡝ ᠪᡝ ᠰᡝᠯᡤᡳᠶᡝᠮᠪᡳ᠉ |
| `trigger_phrase` |  | string | no | `` |  | LoRA ᡳ ᡥᡡᠯᠠᠨ ᡳ ᠮᠠᠩᡤᠠ ᠵᡠᠰᡝᠨ. |
| `reference_conditioning_p` |  | number | no | `0.9` | 0 – 1 | ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᡩᡝᠯᡳ ᡩᠠᠯᡳᠨ ᠪᡝ ᠠᠰᡳᠯᠠᠮᡝ ᠤᠯᡤᠠ ᡥᡡᠯᠠᠨ-ᠰᡠᠨᡤᠠ-ᡤᡳᠰᡠᠨ ᠪᡠᠶᡝᠮᡝᠨᡳ ᠪᡝ ᠰᡝᠯᡤᡳᠶᡝᠮᠪᡳ᠉ |
| `resume_from_lora_url` |  | string \| null | no |  |  | .safetensors LoRA ᠪᡝ ᠵᡠᠶᡝ ᠪᡠᠶᡝᠮᡝᠮᡝ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᡝᠮᡠᠯᡝᠮᡝ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ URL; number_of_steps ᠵᡝᠯᡤᡳ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᠠᠰᡳᠯᠠᠮᡝ ᠪᡳ᠉ |
| `auto_scale_input` |  | boolean | no | `false` |  | ᡝᡵᡝᠮᡝ ᠶᠠᠯᡳᠨ ᡶᡳᠯᡝᠮᡝ ᠠᠮᠪᠠᠨ ᠪᡝ ᠠᠮᠪᠠᠯᠠᠮᡝ ᠰᡠᠨᡤᠠ ᠵᠠᠯᠠᠨᡳ ᠠᠰᡳᠯᠠᠮᡝ ᠵᡠᠯᡤᠠᠨ ᠪᡝ ᠵᡠᠯᡤᠠᠨᠠᠮᠪᡳ; true ᡝᡵᡝ ᠵᡠᠶᡝ ᠪᡠᠶᡝᠮᡝᠮᠪᡳ᠉ |
| `split_input_into_scenes` |  | boolean | no | `true` |  | ᠮᠠᠩᡤᠠ ᠵᠠᠯᠠᠨ ᠠᠴᠠ ᠵᡠᠯᡤᠠᠨ ᠰᡠᠨᡤᠠᠨᡳ ᠰᡝᠯᡤᡳᠶᡝᠮᡝ ᠵᡠᠯᡤᠠᠨ ᠪᡝ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᠠᠮᡝᠯᡝᠮᡝ ᠪᡳ᠉ |
| `split_input_duration_threshold` |  | number | no | `30` | 1 – 60 | ᠵᡠᠯᡤᠠᠨ ᡳ ᡶᡠᠯᡤᠠᠨ ᡳ ᠵᡠᠸᠠᠨ, ᠰᡝᡴᡠᠨᡩ ᡳ ᠰᡝᠮᡝᠨ: ᡝᠯᡝᠮᡝ ᡳ ᠵᡠᠯᡤᠠᠨ ᡩᡝ ᡶᡠᠯᡤᠠᠨ. |
| `debug_dataset` |  | boolean | no | `false` |  | ᠵᡠᠶᡝ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᠠᠴᠠ ᠵᡝᠪᡝᠯᡝᠮᡝ ᠰᡳᠨᡩᠠᠨ ᠪᡝ ᠪᠠᠶᠠᠯᠠᠮᡝ ᠰᡝᠮᠪᡳ᠉ |
| `strict_dataset` |  | boolean | no | `false` |  | ᠣᠩᡤᠣᠯᠣ ᡩᠠᠰᠠᡵᠠ ᡩᡝ ᡠᠴᠠᡵᠠ ᠪᠠᡳᡨᠠ ᠪᡝ ᠴᡳᠩᡴᡳᡳ ᡩᠠᠰᠠᠮᠪᡳ; ᡨᡝᡵᡝ ᠪᡝ ᠣᠴᡳ ᡨᡝᠮᡤᡝᡨᡠᠯᡝᠮᡝ ᠠᡵᠠᡥᠠ ᠣᡵᠣ ᠠᡶᠠᠪᡠᡵᠠ ᠠᡵᡤᠠ ᡳ ᡩᠠᠰᠠᡵᠠ ᠪᡳᡥᡝ᠉ ᡝᡵᡝ ᠪᡝ ᡝᡳᡨᡝᠯᡝᡥᡝ ᠣᠴᡳ, ᡨᡝᡵᡝ ᠣᡵᠣ ᠠᡶᠠᠪᡠᡵᠠ ᠠᡵᡤᠠ ᠪᡝ ᠣᠩᡤᡳᡵᠠᡴᡡ, ᠰᡠᠯᠠ ᡥᡡᠯᠠᠨ ᠪᠠᡳᡨᠠᡵᠠ ᡤᡳᠰᡠᡵᡝᡥᡝ ᠪᡳᡨᡥᡝ, ᡩᡠᡨᠠᠯᠠᡥᠠ ᠯᠠᠴᡳᠯᠠᡵᠠ ᡩᠠᠯᡳᠪᡠᡥᠠ ᠪᡳᡨᡥᡝ, ᡤᡝᠯᡳ ᡤᡳᠰᡠᠨ ᠪᡝ ᡥᡡᠯᠠᡵᠠᡴᡡ ᠰᡠᠨᡤᠠ ᠪᡝ ᠠᠯᡳᡵᠠᡴᡡ᠉ |

## Example input

Required parameters only:

```json
{
  "training_data_url": "https://example.com/your-file.zip"
}
```

A fuller example:

```json
{
  "training_data_url": "https://example.com/your-file.zip"
}
```

## 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.com/v1/run/minimax/h3/ref2va/trainer?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "training_data_url": "https://example.com/your-file.zip"
  }'

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

### JavaScript

```javascript
const API = "https://api.doitong.com/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/ref2va/trainer?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "training_data_url": "https://example.com/your-file.zip"
  }),
});
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.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "training_data_url": "https://example.com/your-file.zip",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/minimax/h3/ref2va/trainer", 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.com/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/ref2va/trainer",
      "input": {
        "training_data_url": "https://example.com/your-file.zip"
      },
      "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/ref2va/trainer",
  "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": 30000,
    "usd": "30.00",
    "charged": 30000,
    "refunded": 0
  },
  "input": {
    "training_data_url": "https://example.com/your-file.zip"
  },
  "output": {
    "lora_file": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    },
    "config_file": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    },
    "debug_dataset": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "file",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `lora_file` | object {url, content_type, file_name, file_size} | ᡩᠠᠯᡳᠮᡝ LoRA ᡳ ᡵᠠᠰᡠ URL, .safetensors ᡶᡳᠯᡝ. |
| `config_file` | object {url, content_type, file_name, file_size} | ᡩᠠᠯᡳᠮᡝ ᡳ ᠵᠠᠯᡳᠨ ᡳ ᠪᠠᡳᡵᡝᠨ ᡳ ᡶᡠᠯᡤᠠᠨ. |
| `debug_dataset` | object {url, content_type, file_name, file_size} \| null | `debug_dataset` ᠠᠰᡳᠯᠠᠮᡝ ᠪᡳᠰᡳᠨ ᠠᠮᡝ ᠪᡠᠶᡝᠮᡝᠮᡝ ᠪᡳᠰᡳᠶᠠᠯᠠᠮᡝ ᠵᡠᠶᡝ ᠪᡝ ᠠᠮᠠᠯᠠᠮᡝ ᠪᡳ᠉ |

## Related models

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## Links

- HTML page: https://doitong.com/developers/models/minimax/h3/ref2va/trainer
- 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/ref2va/trainer
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/minimax/h3/ref2va/trainer