# Sam 3 · Video API

> סעגמענטירט און נאָכפֿאָלגט אָבדזשעקטן אין אַ ווידעאָ פֿון טעקסט־, פּונקט־ אָדער קעסטל־פּראָמפּטן, און גיט צוריק אַ מאַסקירט ווידעאָ

דערקענט און נאָכפֿאָלגט אָבדזשעקטן דורכן ווידעאָ פֿון `video_url`. באַצייכנט צילן אין `prompt`, צעטיילנדיק עטלעכע מיט קאָמעס, אָדער ניצט `point_prompts` און `box_prompts`. `detection_threshold` גייט פֿון 0.1 ביז 1, און `apply_mask` קאָנטראָלירט צי די מאַסקע ווערט געצייכנט אויפֿן ווידעאָ. דער רעזולטאַט איז mp4 אָדער webm, פּלוס אַ zip מיט באַגרענעצונג־קעסטל־איבערלייגונגען פֿאַר יעדן פֿריים.

- Model id: `sam-3/video`
- Made by: Meta
- Category: Video to Video
- Output: video
- Price per 16 frames of your input video: $0.005 / 16 frames of input video (cheapest run $0.005 (5 API credits))
- Run: `POST https://api.doitong.com/v1/run/sam-3/video`
- Quote: `POST https://api.doitong.com/v1/quote/sam-3/video`
- Docs page: https://doitong.com/yi/developers/models/sam-3/video

## Pricing

Price: **$0.005 / 16 frames of input video**. Price per 16 frames of your input video: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

The full example input below costs $0.095 = 95 API credits (19 × 16 frames input video × $0.005).

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/sam-3/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

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 |
|---|---|---|---|---|---|---|
| `video_url` | `video` | string (video URL) | yes |  |  | ווידעא־URL פֿאַר סעגמענטאַציע. |
| `prompt` |  | string | no | `` |  | סעגמענטאַציע־פּראָמפּט וואָס שטיצט עטלעכע נאָכגעפֿאָלגטע אָביעקטן דורך באַשרײַבונגען צעטיילט מיט קאָמעס, למשל 'person, cloth'. |
| `text_prompt` |  | string \| null | no |  |  | [DEPRECATED] אַלטע אַרײַנגעבונג געהאַלטן פֿאַר צוריק־קאָמפּאַטיביליטעט; נוצט 'prompt' אַנשטאָט. |
| `point_prompts` |  | array of object {x, y, label, object_id} | no | `[]` |  | זאַמלונג פֿון פּונקט־באזירטע פּראָמפּטן. |
| `point_prompts[].x` |  | integer \| null | no |  |  | פּראָמפּט־פּאָזיציע צוזאמען מיטן X־אַקס. |
| `point_prompts[].y` |  | integer \| null | no |  |  | פּראָמפּט־פּאָזיציע צוזאמען מיטן Y־אַקס. |
| `point_prompts[].label` |  | enum (integer) \| null | no |  | `0`, `1` | פֿאָרגרונט/הינטערגרונט־לאַבעל: 1 מיינט פֿאָרגרונט; 0 מיינט הינטערגרונט. |
| `point_prompts[].object_id` |  | integer \| null | no |  |  | אָפּציאָנעלע אידענטיפֿיקאַטאָר וואָס גרופּירט פּראָמפּטן פֿאַר איין אָביעקט. אויב טעקסט ווערט אויך צוגעשטעלט, באַשטימט דער אידענטיפֿיקאַטאָר וועלכן דערקענטן אָביעקט די פּונקטן פֿאַרבעסערן. |
| `box_prompts` |  | array of object {x_min, y_min, x_max, y_max, object_id} | no | `[]` |  | קעסטל־פּראָמפּטן אויסגערעכנט ווי קאָאָרדינאַטן־טופּלען (x_min, y_min, x_max, y_max). |
| `box_prompts[].x_min` |  | integer \| null | no |  |  | מינימאַלע x-קאָאָרדינאַט פֿאַרן קעסטל. |
| `box_prompts[].y_min` |  | integer \| null | no |  |  | מינימאַלע y-קאָאָרדינאַט פֿאַרן קעסטל. |
| `box_prompts[].x_max` |  | integer \| null | no |  |  | מאַקסימום X־קאָאָרדינאַט פֿאַרן קעסטל. |
| `box_prompts[].y_max` |  | integer \| null | no |  |  | מאַקסימום Y־קאָאָרדינאַט פֿאַרן קעסטל. |
| `box_prompts[].object_id` |  | integer \| null | no |  |  | אָפּציאָנעלע אידענטיפֿיקאַטאָר וואָס גרופּירט קעסטלעך פֿאַר איין אָביעקט. |
| `apply_mask` |  | boolean | no | `true` |  | צי צו לייגן אַ מאַסקע אויפֿן ווידעא. |
| `video_output_type` |  | enum (string) | no | `X264 (.mp4)` | `X264 (.mp4)`, `VP9 (.webm)` | רעזולטאַט־טיפּ פֿאַרן רעזולטירנדיקן ווידעא. |
| `detection_threshold` |  | number | no | `0.5` | 0.1 – 1 | שוועל פֿאַר דער דערקענונגס־צוטרוי: אַ נידעריקער ווערט פֿאַרגרעסערט די צאָל דערקענונגען אויפֿן חשבון פֿון פּינקטלעכקייט; דער גרענעץ איז 0.0–1.0. |

File parameters (`video`) 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
{
  "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

## 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/sam-3/video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# 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/sam-3/video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }),
});
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 = {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/sam-3/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.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": "sam-3/video",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
      },
      "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": "sam-3/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": 95,
    "usd": "0.095",
    "charged": 95,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "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
    },
    "boundingbox_frames_zip": {
      "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
    }
  },
  "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.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | ווידעא געשאַפֿן דורך סעגמענטאַציע. |
| `boundingbox_frames_zip` | object {url, content_type, file_name, file_size} \| null | ZIP־אַרכיוו מיט באַגרענעצונגס־קעסטל־איבערלאַגעס פֿאַר יעדער ראַם. |

## Related models

- [Sam 3 · Image RLE](https://doitong.com/developers/models/sam-3/image-rle.md) (`sam-3/image-rle`): $0.005 / run
- [Segment Anything Model 3](https://doitong.com/developers/models/sam-3/image.md) (`sam-3/image`): $0.005 / run
- [Sam 3 · Video RLE](https://doitong.com/developers/models/sam-3/video-rle.md) (`sam-3/video-rle`): $0.005 / 16 frames of input video
- [Sam 3 · 3D Body](https://doitong.com/developers/models/sam-3/3d-body.md) (`sam-3/3d-body`): $0.02 / run
- [Sam 3 · 3D Objects](https://doitong.com/developers/models/sam-3/3d-objects.md) (`sam-3/3d-objects`): $0.02 / run
- [Sam 3 · 3D Align](https://doitong.com/developers/models/sam-3/3d-align.md) (`sam-3/3d-align`): $0.02 / run
- [Sam 3 · Image · Embed](https://doitong.com/developers/models/sam-3/image/embed.md) (`sam-3/image/embed`): $0.005 / run
- [Sam 3 1 · Video](https://doitong.com/developers/models/sam-3-1/video.md) (`sam-3-1/video`): $0.01 / 16 frames of input video

## Links

- HTML page: https://doitong.com/developers/models/sam-3/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=sam-3/video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/sam-3/video