Name: Seedance 2.0 Mini API: Low-Cost AI Video with Audio
Brand: magicapi
SKU: api-magicapi-high-volume-video-generation-api-bytedance-seedance-2-0-mini
Availability: InStock
Author: API Market

Shashank Agarwal

# 🎬 Video and Audio Generator API (ByteDance Seedance 2.0 Mini)

## Overview
Seedance 2.0 Mini is a video model from ByteDance. Its developer describes it as a lower-cost variant of Seedance 2.0 for high-volume video generation with multimodal inputs and native audio.

Send a text `prompt`. Optionally add a first frame `image` (and a `last_frame_image`), or up to 9 `reference_images`, 3 `reference_videos` and 3 `reference_audios`. Each request returns the URL of one MP4 video at 480p or 720p, up to 15 seconds long, with synchronized audio by default.

## Features
- **Text to video**: describe the scene, camera motion and sound in `prompt` (up to 4000 characters).
- **Native audio**: `generate_audio` (default `true`) adds dialogue, sound effects and background music. Put dialogue in double quotes in the prompt.
- **Image to video**: set `image` as the first frame and optionally `last_frame_image` as the last frame.
- **Reference inputs**: up to 9 `reference_images`, 3 `reference_videos` and 3 `reference_audios`, referenced in the prompt as [Image1], [Video1], [Audio1] and so on.
- **Length**: `duration` in seconds, up to 15 (default 5), or `-1` to let the model pick the length.
- **Format**: `resolution` `480p` or `720p` (default) and `aspect_ratio` `16:9` (default), `4:3`, `1:1`, `3:4`, `9:16`, `21:9`, `9:21` or `adaptive`.

## Use Cases
1. **Short ads and social clips**: product and lifestyle videos with sound in vertical or widescreen formats.
2. **Animating a still image**: start a video from a product photo or artwork with `image`.
3. **Consistent characters**: keep a character or style across clips with `reference_images`.
4. **Motion and style from a video**: reuse the motion or style of an existing clip with `reference_videos`.
5. **High-volume drafts**: many 480p previews of a scene before choosing one to produce at 720p.

## Visual Examples
### Example Input
A text-only request: a cinematic night-time street racing shot with engine and tire sounds, 5 seconds at 480p in 16:9 with audio, and no image, reference or audio inputs.

```json
{
  "prompt": "Hyper-realistic cinematic street racing shot. Audio: High-pitched engine revving, aggressive tire screech, and rain hitting metal. Camera starts low to the ground on a wet asphalt hairpin curve at night. A matte-black vintage sports car drifts aggressively into frame. The camera executes a fast whip-pan to the right, perfectly tracking the car's speed. The car slides out of frame, kicking up a massive rooster tail of neon-lit water droplets. The camera abruptly stops panning and immediately rack-focuses to a wet, crushed soda can resting on the asphalt in the extreme foreground. Perfect water physics, 1080p, 24fps.",
  "duration": 5,
  "resolution": "480p",
  "aspect_ratio": "16:9",
  "generate_audio": true,
  "reference_audios": [],
  "reference_images": [],
  "reference_videos": []
}
```

### Example Output
[Watch the example output](https://blog.api.market/wp-content/uploads/2026/10/seedance-2-0-mini-output-sxrvg408-api-market-1.mp4)

## Input Parameters
| Field | Type | Required | Default | Allowed values | Description |
| --- | --- | --- | --- | --- | --- |
| `prompt` | string | Yes |  | up to 4000 characters | Text prompt for video generation. Maximum 4000 characters. Its developer recommends keeping prompts under 600 English words for best results |
| `image` | string (URL) | No | none |  | Input image for image-to-video generation (first frame). Cannot be combined with reference images |
| `last_frame_image` | string (URL) | No | none |  | Input image for the last frame. Only works if a first frame image is also provided. Cannot be combined with reference images |
| `reference_images` | array of URLs | No | `[]` |  | Reference images (up to 9) for character consistency, style guidance and scene composition. Cannot be used together with first or last frame images. Reference them in your prompt as [Image1], [Image2], etc. |
| `reference_videos` | array of URLs | No | `[]` |  | Reference videos (up to 3, total duration max 15 s) for motion transfer, style reference and editing. Reference them in your prompt as [Video1], [Video2], etc. |
| `reference_audios` | array of URLs | No | `[]` |  | Reference audio files (up to 3, total duration max 15 s) for audio-driven generation and lip-sync. Requires at least one reference image or video. Reference them in your prompt as [Audio1], [Audio2], etc. |
| `duration` | integer | No | `5` | `-1` to `15` | Video duration in seconds. Set to -1 to let the model pick the length |
| `resolution` | string | No | `720p` | `480p`, `720p` | Video resolution |
| `aspect_ratio` | string | No | `16:9` | `16:9`, `4:3`, `1:1`, `3:4`, `9:16`, `21:9`, `9:21`, `adaptive` | Video aspect ratio. Set to `adaptive` to let the model choose the ratio based on the inputs |
| `generate_audio` | boolean | No | `true` |  | Generate synchronized audio with the video, including dialogue (use double quotes in the prompt), sound effects and background music |
| `seed` | integer | No | none |  | Random seed. Set it for reproducible generation |

`reference_audios` needs at least one reference image or reference video. `image` and `last_frame_image` cannot be combined with `reference_images`.

## Pricing
- **Pay As You Go (PAYG) pricing**: you only pay for what you use.
- **Price**: $0.05 per API unit.
- **1 API unit = 1 second of output video, rounded up per request.** A request is billed on the requested `duration`.
- **Resolution and reference videos set the price per second** (unit price x factor):

| `resolution` | Without `reference_videos` | With `reference_videos` |
| --- | --- | --- |
| `480p` | $0.05 per second (x1) | $0.0625 per second (x1.25) |
| `720p` | $0.1125 per second (x2.25) | $0.1375 per second (x2.75) |

- When `resolution` is left out, `720p` applies; without reference videos that is $0.1125 per second, so a default 5-second request costs $0.5625.
- `generate_audio`, images and reference audio do not change the price.
- When `duration` is `-1`, the model picks the length and you are billed for the seconds of video it returns, rounded up.
- **Example cost**: the example asked for 5 seconds at `480p` without reference videos: 5 x $0.05 = $0.25.
- **Failed or cancelled predictions are not billed.**
- **GET requests to check prediction status** are free and don't count toward API unit usage.
- **No monthly subscription fee.**

## API Documentation

### Base URL
All API requests go to: `https://prod.api.market/api/v1/magicapi/high-volume-video-generation-api-bytedance-seedance-2-0-mini`

### Authentication
Send your api.market API key in the `x-api-market-key` header:
```
x-api-market-key: YOUR_API_MARKET_KEY
```

### Asynchronous Processing
**IMPORTANT**: This API is asynchronous. The flow is:
1. Send a POST request to `/predictions`. A successful request returns **201 Created** with a prediction `id` and a `status` of `starting` or `processing`.
2. Poll GET `/predictions/{id}` with that ID.
3. Keep polling while `status` is `starting` or `processing`.
4. Stop when `status` is `succeeded` (read `output`), `failed` or `canceled` (read `error`).

Video generation usually takes one to a few minutes. A polling interval of 2 seconds and an overall timeout of 600 seconds (10 minutes) work well.

### Endpoints

#### Create a Prediction
```bash
curl -X POST "https://prod.api.market/api/v1/magicapi/high-volume-video-generation-api-bytedance-seedance-2-0-mini/predictions" \
  -H "Content-Type: application/json" \
  -H "x-api-market-key: YOUR_API_MARKET_KEY" \
  -d '{
    "version": "bytedance/seedance-2.0-mini",
    "input": {
      "prompt": "Hyper-realistic cinematic street racing shot. Audio: High-pitched engine revving, aggressive tire screech, and rain hitting metal. Camera starts low to the ground on a wet asphalt hairpin curve at night. A matte-black vintage sports car drifts aggressively into frame. The camera executes a fast whip-pan to the right, perfectly tracking the car'\''s speed. The car slides out of frame, kicking up a massive rooster tail of neon-lit water droplets. The camera abruptly stops panning and immediately rack-focuses to a wet, crushed soda can resting on the asphalt in the extreme foreground. Perfect water physics, 1080p, 24fps.",
      "duration": 5,
      "resolution": "480p",
      "aspect_ratio": "16:9",
      "generate_audio": true,
      "reference_audios": [],
      "reference_images": [],
      "reference_videos": []
    }
  }'
```

Response (201 Created):
```json
{
  "id": "sxrvg408xnrmy0d1cckv7c646g",
  "version": "bytedance/seedance-2.0-mini",
  "status": "starting",
  "created_at": "2026-10-22T10:27:45.144Z"
}
```

#### Check Prediction Status
```bash
curl -X GET "https://prod.api.market/api/v1/magicapi/high-volume-video-generation-api-bytedance-seedance-2-0-mini/predictions/{id}" \
  -H "x-api-market-key: YOUR_API_MARKET_KEY"
```

Response when the prediction has finished (200 OK):
```json
{
  "id": "sxrvg408xnrmy0d1cckv7c646g",
  "status": "succeeded",
  "output": "https://blog.api.market/wp-content/uploads/2026/10/seedance-2-0-mini-output-sxrvg408-api-market-1.mp4",
  "error": null,
  "created_at": "2026-10-22T10:27:45.144Z",
  "started_at": "2026-10-22T10:27:45.157Z",
  "completed_at": "2026-10-22T10:29:32.684Z"
}
```

`output` is a single URL string pointing to the MP4 video.

### Status Codes
- **201 Created**: prediction created (POST `/predictions`). This is the normal success response.
- **200 OK**: prediction details returned (GET `/predictions/{id}`).
- **400 Bad Request**: invalid input, for example a missing `prompt`, a `duration` above 15 or a `resolution` other than `480p` or `720p`.
- **401 Unauthorized**: missing or invalid API key.
- **404 Not Found**: no prediction with that ID.
- **429 Too Many Requests**: rate limit exceeded.
- **500 Internal Server Error** or **503 Service Unavailable**: temporary server problem; retry later.

## Rate Limits
All plans allow 10 requests per second. Requests above that return `429 Too Many Requests`; back off before retrying and honour any `Retry-After` header. Polling a prediction with GET is free but still counts toward the per-second limit, so poll every 1 to 5 seconds rather than in a tight loop.

## Error Handling
- Check the HTTP status code of every request and read the response body for the error message.
- A prediction can also end with `status` set to `failed`; the `error` field then explains why. Failed predictions are not billed.
- Retry 429, 500 and 503 responses with exponential backoff. Fix the input before retrying a 400.

## Implementation Guide
### Example Code

#### JavaScript
```javascript
const apiKey = "YOUR_API_MARKET_KEY";
const baseUrl = "https://prod.api.market/api/v1/magicapi/high-volume-video-generation-api-bytedance-seedance-2-0-mini";

async function createAndWaitForPrediction(input) {
  const response = await fetch(`${baseUrl}/predictions`, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "x-api-market-key": apiKey
    },
    body: JSON.stringify({ version: "bytedance/seedance-2.0-mini", input })
  });

  if (response.status !== 201) {
    throw new Error(`API error: ${response.status} ${await response.text()}`);
  }

  const prediction = await response.json();
  return pollForResults(prediction.id);
}

const delay = (ms) => new Promise((resolve) => setTimeout(resolve, ms));

async function pollForResults(predictionId) {
  const maxTimeout = 600000;
  const pollInterval = 2000;
  const startTime = Date.now();

  while (Date.now() - startTime < maxTimeout) {
    const response = await fetch(`${baseUrl}/predictions/${predictionId}`, {
      headers: { "x-api-market-key": apiKey }
    });

    if (!response.ok) {
      throw new Error(`API error: ${response.status} ${await response.text()}`);
    }

    const prediction = await response.json();

    if (prediction.status === "succeeded") {
      return prediction.output;
    }

    if (prediction.status === "failed" || prediction.status === "canceled") {
      throw new Error(`Prediction ${prediction.status}: ${prediction.error || "Unknown error"}`);
    }

    await delay(pollInterval);
  }

  throw new Error("Prediction timed out after 10 minutes");
}

createAndWaitForPrediction({
  "prompt": "Hyper-realistic cinematic street racing shot. Audio: High-pitched engine revving, aggressive tire screech, and rain hitting metal. Camera starts low to the ground on a wet asphalt hairpin curve at night. A matte-black vintage sports car drifts aggressively into frame. The camera executes a fast whip-pan to the right, perfectly tracking the car's speed. The car slides out of frame, kicking up a massive rooster tail of neon-lit water droplets. The camera abruptly stops panning and immediately rack-focuses to a wet, crushed soda can resting on the asphalt in the extreme foreground. Perfect water physics, 1080p, 24fps.",
  "duration": 5,
  "resolution": "480p",
  "aspect_ratio": "16:9",
  "generate_audio": true,
  "reference_audios": [],
  "reference_images": [],
  "reference_videos": []
}).then((output) => console.log(output));
```

#### Python
```python
import time
import requests

API_KEY = "YOUR_API_MARKET_KEY"
BASE_URL = "https://prod.api.market/api/v1/magicapi/high-volume-video-generation-api-bytedance-seedance-2-0-mini"


def create_and_wait_for_prediction(input_data):
    headers = {"Content-Type": "application/json", "x-api-market-key": API_KEY}
    response = requests.post(
        f"{BASE_URL}/predictions",
        headers=headers,
        json={"version": "bytedance/seedance-2.0-mini", "input": input_data},
    )

    if response.status_code != 201:
        raise Exception(f"API error: {response.status_code} {response.text}")

    return poll_for_results(response.json()["id"])


def poll_for_results(prediction_id):
    max_timeout = 600
    poll_interval = 2
    headers = {"x-api-market-key": API_KEY}
    start_time = time.time()

    while time.time() - start_time < max_timeout:
        response = requests.get(f"{BASE_URL}/predictions/{prediction_id}", headers=headers)

        if response.status_code != 200:
            raise Exception(f"API error: {response.status_code} {response.text}")

        prediction = response.json()

        if prediction["status"] == "succeeded":
            return prediction["output"]

        if prediction["status"] in ("failed", "canceled"):
            raise Exception(f"Prediction {prediction['status']}: {prediction.get('error') or 'Unknown error'}")

        time.sleep(poll_interval)

    raise Exception("Prediction timed out after 10 minutes")


print(create_and_wait_for_prediction({
    "prompt": "Hyper-realistic cinematic street racing shot. Audio: High-pitched engine revving, aggressive tire screech, and rain hitting metal. Camera starts low to the ground on a wet asphalt hairpin curve at night. A matte-black vintage sports car drifts aggressively into frame. The camera executes a fast whip-pan to the right, perfectly tracking the car's speed. The car slides out of frame, kicking up a massive rooster tail of neon-lit water droplets. The camera abruptly stops panning and immediately rack-focuses to a wet, crushed soda can resting on the asphalt in the extreme foreground. Perfect water physics, 1080p, 24fps.",
    "duration": 5,
    "resolution": "480p",
    "aspect_ratio": "16:9",
    "generate_audio": True,
    "reference_audios": [],
    "reference_images": [],
    "reference_videos": []
}))
```

## FAQ
- **How long can a video be?**
  - Up to 15 seconds through `duration` (default 5). Set `-1` to let the model pick the length.
- **Does the video include sound?**
  - Yes by default. `generate_audio` adds dialogue, sound effects and background music. Set it to `false` for a silent video; the price is the same.
- **Why did my request with a reference video cost more?**
  - A non-empty `reference_videos` list uses the higher rate: $0.0625 per second at 480p and $0.1375 per second at 720p.
- **Can I use a first frame and reference images together?**
  - No. `image` and `last_frame_image` cannot be combined with `reference_images`. `reference_audios` needs at least one reference image or video.
- **What does a default request cost?**
  - 5 seconds at 720p without reference videos: 5 x $0.1125 = $0.5625.
- **What if my prediction fails?**
  - Failed predictions are not billed. Read the `error` field, adjust the input and try again.

## Contact Us
If you have any questions, reach out to us through the chat on the bottom right of the page. You can also email our support team at hello@magicapi.com.


Generate video with native audio from text, a first frame, reference images, videos or audio with ByteDance Seedance 2.0 Mini. Pay as you go, no monthly fee.