# Bytedance Upscaler Upscale Video API

> Nâng cấp độ phân giải video lên đến 8K với thiết lập sẵn, các mức chất lượng, tùy chọn tốc độ khung hình và độ sâu bit

Nhận `video_url` và nâng độ phân giải lên `target_resolution` (1080p đến 8k), hoặc dùng `scale_ratio` từ 1.1 đến 10. `target_fps` nằm trong khoảng 24 đến 120. `enhancement_preset` phù hợp với nội dung như ugc hoặc old_film, `enhancement_tier` là fast, standard hoặc pro, và `bit_depth` 10 hoặc 12 yêu cầu tier pro.

- Model id: `bytedance-upscaler/upscale/video`
- Made by: ByteDance
- Category: Upscale
- Output: video
- Price per second of your input video: from $0.0072 / second of input video (cheapest run $0.008 (8 API credits))
- Run: `POST https://api.doitong.com/v1/run/bytedance-upscaler/upscale/video`
- Quote: `POST https://api.doitong.com/v1/quote/bytedance-upscaler/upscale/video`
- Docs page: https://doitong.com/vi/developers/models/bytedance-upscaler/upscale/video

## Pricing

Price: **from $0.0072 / second of input video** (the lowest tier; the quote prices your exact input). Price per second 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.

Price by tier:

- 1080p: $0.0072 / second of input video
- 2K: $0.0144 / second of input video
- 4K: $0.0288 / second of input video
- 1080p, frame rate: $0.0288 / second of input video
- 2K, frame rate: $0.0576 / second of input video
- 1080p, pro: $0.072 / second of input video
- 6K: $0.0737 / second of input video
- 8K: $0.1152 / second of input video
- 4K, frame rate: $0.1152 / second of input video
- 2K, pro: $0.144 / second of input video
- 4K, pro: $0.288 / second of input video
- 1080p, pro, frame rate: $0.288 / second of input video
- 6K, frame rate: $0.2948 / second of input video
- 8K, frame rate: $0.4608 / second of input video
- 2K, pro, frame rate: $0.576 / second of input video
- 6K, pro: $0.737 / second of input video

The full example input below costs $0.072 = 72 API credits (10 s input video × $0.0072 (1080p)).

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/bytedance-upscaler/upscale/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 |  |  | URL trỏ tới video nguồn cần phóng to. |
| `target_resolution` |  | enum (string) | no | `1080p` | `1080p`, `2k`, `4k`, `6k`, `8k` | Độ phân giải mong muốn của video đã phóng to. |
| `target_fps` |  | number | no | `30` | 24 – 120 | Tốc độ khung hình mong muốn của đầu ra đã nâng cao, tính bằng khung hình trên giây. |
| `enhancement_preset` |  | enum (string) | no | `general` | `general`, `ugc`, `short_series`, `aigc`, `old_film` | Preset nâng cao phù hợp với loại video. Dùng 'general' để xử lý mục đích chung, 'ugc' cho video ngắn do người dùng tạo, 'short_series' cho phim ngắn, 'aigc' cho nội dung do AI tạo và 'old_film' để khôi phục phim kinh điển. |
| `enhancement_tier` |  | enum (string) | no | `standard` | `fast`, `standard`, `pro` | Mức chất lượng dùng để nâng cao. |
| `scale_ratio` |  | number \| null | no |  | 1.1 – 10 | Hệ số độ phân giải đầu ra, trong khoảng từ 1.1 đến 10.0; khi được cung cấp, hệ số này thay thế target_resolution và nhân độ phân giải đầu vào (ví dụ, 2.0 sẽ nhân đôi). Chỉ hỗ trợ thu phóng tối đa đến 4k, được định nghĩa là tổng số pixel 3840x2160; vượt giới hạn này sẽ gây lỗi. |
| `fidelity` |  | enum (string) | no | `high` | `high`, `medium` | Cường độ nâng cao, trong đó 'medium' cải thiện chất lượng hình ảnh cân bằng còn 'high' nâng cao nhẹ và phần lớn giữ lại kết cấu hình ảnh của video nguồn. |
| `bit_depth` |  | enum (integer) | no | `8` | `8`, `10`, `12` | Chọn độ sâu bit màu của video đầu ra; cần gói nâng cao Pro cho đầu ra 10-bit hoặc 12-bit. |

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/bytedance-upscaler/upscale/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/bytedance-upscaler/upscale/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/bytedance-upscaler/upscale/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": "bytedance-upscaler/upscale/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": "bytedance-upscaler/upscale/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": 72,
    "usd": "0.072",
    "charged": 72,
    "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
    },
    "duration": 5
  },
  "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} | Tệp video kết quả. |
| `duration` | number |  |

## Related models

- [Topaz Image Upscale](https://doitong.com/developers/models/topaz/upscale/image/precision.md) (`topaz/upscale/image/precision`): $0.08 / 24 megapixels of output image
- [Topaz Video Upscale](https://doitong.com/developers/models/topaz/upscale/video/precision.md) (`topaz/upscale/video/precision`): from $0.00667 / second of input video
- [SeedVR2 · Image](https://doitong.com/developers/models/seedvr/upscale/image.md) (`seedvr/upscale/image`): $0.001 / megapixel of output image
- [SeedVR2 · Image · Seamless](https://doitong.com/developers/models/seedvr/upscale/image/seamless.md) (`seedvr/upscale/image/seamless`): $0.0025 / megapixel of output image
- [SeedVR2 · Video](https://doitong.com/developers/models/seedvr/upscale/video.md) (`seedvr/upscale/video`): $0.001 / megapixel of output video
- [AuraSR](https://doitong.com/developers/models/aura-sr.md) (`aura-sr`): $0.001111 / second of processing time
- [Bria Increase Resolution](https://doitong.com/developers/models/bria/increase-resolution.md) (`bria/increase-resolution`): $0.04 / image
- [Chrono Edit Lora Gallery · Upscaler](https://doitong.com/developers/models/chrono-edit-lora-gallery/upscaler.md) (`chrono-edit-lora-gallery/upscaler`): $0.03 / image

## Links

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