---
title: Seedance 1.0 Pro Fast | Runware Docs
url: https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast
description: Fast Seedance 1.0 Pro video generation for dance content
---
# Seedance 1.0 Pro Fast

Seedance 1.0 Pro Fast accelerates the core Seedance pipeline for expressive dance and performance clips. It turns text prompts or reference images into smooth, cinematic motion with strong temporal consistency. Ideal for rapid iteration in creative tools and production workflows.

- **ID**: `bytedance:2@2`
- **Status**: live
- **Creator**: ByteDance
- **Release Date**: October 25, 2025
- **Capabilities**: Text to Video, Image to Video

## Pricing

≈ $0.0062/s at 480p, $0.0140/s at 720p, and $0.0314/s at 1080p

- **16:9 · 480p · 5s**: `$0.0315`
- **9:16 · 480p · 5s**: `$0.0315`
- **16:9 · 480p · 10s**: `$0.0629`
- **9:16 · 480p · 10s**: `$0.0629`
- **4:3 · 480p · 5s**: `$0.0304`
- **3:4 · 480p · 5s**: `$0.0304`
- **4:3 · 480p · 10s**: `$0.0609`
- **3:4 · 480p · 10s**: `$0.0609`
- **1:1 · 480p · 5s**: `$0.0311`
- **1:1 · 480p · 10s**: `$0.0623`
- **21:9 · 480p · 5s**: `$0.0304`
- **21:9 · 480p · 10s**: `$0.0607`
- **16:9 · 720p · 5s**: `$0.0668`
- **9:16 · 720p · 5s**: `$0.0668`
- **16:9 · 720p · 10s**: `$0.1336`
- **9:16 · 720p · 10s**: `$0.1336`
- **4:3 · 720p · 5s**: `$0.0709`
- **3:4 · 720p · 5s**: `$0.0709`
- **4:3 · 720p · 10s**: `$0.1417`
- **3:4 · 720p · 10s**: `$0.1417`
- **1:1 · 720p · 5s**: `$0.0701`
- **1:1 · 720p · 10s**: `$0.1402`
- **21:9 · 720p · 5s**: `$0.0732`
- **21:9 · 720p · 10s**: `$0.1464`
- **16:9 · 1080p · 5s**: `$0.1589`
- **9:16 · 1080p · 5s**: `$0.1589`
- **16:9 · 1080p · 10s**: `$0.3177`
- **9:16 · 1080p · 10s**: `$0.3177`
- **4:3 · 1080p · 5s**: `$0.1579`
- **3:4 · 1080p · 5s**: `$0.1579`
- **4:3 · 1080p · 10s**: `$0.3159`
- **3:4 · 1080p · 10s**: `$0.3159`
- **1:1 · 1080p · 5s**: `$0.1577`
- **1:1 · 1080p · 10s**: `$0.3154`
- **21:9 · 1080p · 5s**: `$0.1536`
- **21:9 · 1080p · 10s**: `$0.3072`

## Compatibility & Validation

Either provide `inputs.frameImages`, or specify `width/height` or `resolution`.

---

`resolution` cannot be used with `width/height`.

---

`width` and `height` must be used together.

---

The following dimension combinations are supported:

| Configuration | Dimensions |
| --- | --- |
| `480p (16:9)` | `864x480` |
| `480p (4:3)` | `736x544` |
| `480p (1:1)` | `640x640` |
| `480p (3:4)` | `544x736` |
| `480p (9:16)` | `480x864` |
| `480p (9:21)` | `416x960` |
| `480p (21:9)` | `960x416` |
| `1080p (16:9)` | `1920x1088` |
| `1080p (4:3)` | `1664x1248` |
| `1080p (1:1)` | `1440x1440` |
| `1080p (3:4)` | `1248x1664` |
| `1080p (9:16)` | `1088x1920` |
| `1080p (9:21)` | `928x2176` |
| `1080p (21:9)` | `2176x928` |

## Request Parameters

**API Options**

Platform-level options for task execution and delivery.

### [taskType](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `videoInference`

Identifier for the type of task being performed

### [taskUUID](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

### [outputType](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-outputtype)

- **Type**: `string`
- **Default**: `URL`

Video output type.

**Allowed values**: `URL`

### [outputFormat](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-outputformat)

- **Type**: `string`
- **Default**: `MP4`

Specifies the file format of the generated output. The available values depend on the task type and the specific model's capabilities.

- \`MP4\`: Widely supported video container (H.264), recommended for general use.
- \`WEBM\`: Optimized for web delivery.
- \`MOV\`: QuickTime format, common in professional workflows (Apple ecosystem).

**Allowed values**: `MP4` `WEBM` `MOV`

### [outputQuality](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-outputquality)

- **Type**: `integer`
- **Min**: `20`
- **Max**: `99`
- **Default**: `95`

Compression quality of the output. Higher values preserve quality but increase file size.

### [webhookURL](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-webhookurl)

- **Type**: `string`
- **Format**: `URI`

Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

**Learn more** (1 resource):

- [Webhooks](https://runware.ai/docs/platform/webhooks) (platform)

### [deliveryMethod](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-deliverymethod)

- **Type**: `string`
- **Default**: `async`

Determines how the API delivers task results.

**Allowed values**:

- `async` Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse. Required for long-running tasks like video generation.

**Learn more** (1 resource):

- [Task Polling](https://runware.ai/docs/platform/task-polling) (platform)

### [uploadEndpoint](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-uploadendpoint)

- **Type**: `string`
- **Format**: `URI`

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

**Common use cases:**

- **Cloud storage**: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
- **CDN integration**: Upload to content delivery networks for immediate distribution.

```text
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg
```

The content data will be sent as the request body to the specified URL when generation is complete.

### [safety](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-safety)

- **Path**: `safety.checkContent`
- **Type**: `object (2 properties)`

Content safety checking configuration for video generation.

#### [checkContent](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-safety-checkcontent)

- **Path**: `safety.checkContent`
- **Type**: `boolean`
- **Default**: `false`

Enable or disable content safety checking. When enabled, defaults to `fast` mode.

#### [mode](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-safety-mode)

- **Path**: `safety.mode`
- **Type**: `string`
- **Default**: `none`

Safety checking mode for video generation.

**Allowed values**:

- `none` Disables checking.
- `fast` Checks key frames.
- `full` Checks all frames.

### [ttl](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-ttl)

- **Type**: `integer`
- **Min**: `60`

Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`.

### [includeCost](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-includecost)

- **Type**: `boolean`
- **Default**: `false`

Include task cost in the response.

### [numberResults](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-numberresults)

- **Type**: `integer`
- **Min**: `1`
- **Max**: `4`
- **Default**: `1`

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

**Inputs**

Input resources for the task (images, audio, etc). These must be nested inside the \`inputs\` object.

### [frameImages](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-inputs-frameimages)

- **Path**: `inputs.frameImages`
- **Type**: `array of strings or objects`

An array of frame-specific image inputs to guide video generation. Each item can be either a plain image input (UUID, URL, Data URI, or Base64) or an object that pairs an image with a target frame position.

The `frameImages` parameter allows you to constrain specific frames within the video sequence, ensuring that particular visual content appears at designated points. This is different from `referenceImages`, which provide overall visual guidance without constraining specific timeline positions.

When the `frame` parameter is omitted, automatic distribution rules apply:

- **1 image**: Used as the first frame.

**Examples**:

**Shorthand format:** When you don't need to specify a frame position, you can pass a plain image input directly.

```json
"frameImages": [
  "aac49721-1964-481a-ae78-8a4e29b91402"
]
```

**Object format:** When you need to specify a frame position, use an object with `image` and `frame`.

```json
"frameImages": [
  {
    "image": "aac49721-1964-481a-ae78-8a4e29b91402",
    "frame": "first"
  }
]
```

**Format 1: string[]**:

- **Type**: `string`

Image input (UUID, URL, Data URI, or Base64).

**Format 2: object[]**:

#### [image](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-inputs-frameimages-format-2-image)

- **Path**: `inputs.frameImages.image`
- **Type**: `string`
- **Required**: true

Image input (UUID, URL, Data URI, or Base64).

#### [frame](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-inputs-frameimages-format-2-frame)

- **Path**: `inputs.frameImages.frame`
- **Type**: `object`

Target frame position for the image. This model only supports the first frame.

**Allowed values**:

- `first` First frame of the video.
- `0` Frame index 0 (first frame).

**Generation Parameters**

Core parameters for controlling the generated content.

### [model](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-model)

- **Type**: `string`
- **Required**: true
- **Value**: `bytedance:2@2`

Identifier of the model to use for generation.

**Learn more** (3 resources):

- [Text To Image: Model Selection The Foundation Of Generation](https://runware.ai/docs/guides/text-to-image#model-selection-the-foundation-of-generation) (guide)
- [Image Inpainting: Model Specialized Inpainting Models](https://runware.ai/docs/guides/image-inpainting#model-specialized-inpainting-models) (guide)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide)

### [positivePrompt](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-positiveprompt)

- **Type**: `string`
- **Required**: true
- **Min**: `2`
- **Max**: `3000`

Text prompt describing elements to include in the generated output.

**Learn more** (2 resources):

- [Text To Image: Prompts Guiding The Generation](https://runware.ai/docs/guides/text-to-image#prompts-guiding-the-generation) (guide)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide)

### [width](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-width)

- **Type**: `integer`
- **Paired with**: height

Width of the generated media in pixels.

**Learn more** (2 resources):

- [Image To Image: Dimensions Changing Aspect Ratio](https://runware.ai/docs/guides/image-to-image#dimensions-changing-aspect-ratio) (guide)
- [Image Outpainting: Dimensions Critical For Outpainting](https://runware.ai/docs/guides/image-outpainting#dimensions-critical-for-outpainting) (guide)

### [height](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-height)

- **Type**: `integer`
- **Paired with**: width

Height of the generated media in pixels.

**Learn more** (2 resources):

- [Image To Image: Dimensions Changing Aspect Ratio](https://runware.ai/docs/guides/image-to-image#dimensions-changing-aspect-ratio) (guide)
- [Image Outpainting: Dimensions Critical For Outpainting](https://runware.ai/docs/guides/image-outpainting#dimensions-critical-for-outpainting) (guide)

### [resolution](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-resolution)

- **Type**: `string`

Resolution preset for the output. When used with input media, automatically matches the aspect ratio from the input.

**Allowed values**: `480p` `1080p`

### [duration](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-duration)

- **Type**: `float`
- **Min**: `1.2`
- **Max**: `12`
- **Default**: `5`

Length of the generated video in seconds. The total number of frames produced is determined by duration multiplied by the model's frame rate (fps).

### [seed](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-seed)

- **Type**: `integer`
- **Min**: `0`
- **Max**: `9223372036854776000`

Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range.

**Learn more** (1 resource):

- [Text To Image: Seed Controlling Randomness Deterministically](https://runware.ai/docs/guides/text-to-image#seed-controlling-randomness-deterministically) (guide)

**Provider Settings**

Parameters specific to this model provider. These must be nested inside the \`providerSettings.bytedance\` object.

### [cameraFixed](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#request-providersettings-bytedance-camerafixed)

- **Path**: `providerSettings.bytedance.cameraFixed`
- **Type**: `boolean`
- **Default**: `false`

Fix the camera position and angle, preventing any panning, tilting, or zooming effects.

## Response Parameters

### [taskType](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `videoInference`

Type of the task.

### [taskUUID](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the task.

### [videoUUID](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-videouuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the output video.

### [videoURL](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-videourl)

- **Type**: `string`
- **Format**: `URI`

URL of the output video.

### [videoBase64Data](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-videobase64data)

- **Type**: `string`

Base64-encoded video data.

### [videoDataURI](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-videodatauri)

- **Type**: `string`
- **Format**: `URI`

Data URI of the output video.

### [seed](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-seed)

- **Type**: `integer`

The seed used for generation. If none was provided, shows the randomly generated seed.

### [NSFWContent](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-nsfwcontent)

- **Type**: `boolean`

Flag indicating if NSFW content was detected.

### [cost](https://runware.ai/docs/models/bytedance-seedance-1-0-pro-fast#response-cost)

- **Type**: `float`

Task cost in USD. Present when `includeCost` is set to `true` in the request.

## Examples

### Moonlit Desert Festival Procession (Text to Video)

[Watch video](https://assets.runware.ai/examples/bytedance-seedance-1-0-pro-fast/df3d1909-40ed-4976-a4dd-ad0d3e58f8e0.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "59d02567-ead8-47ef-94c7-d04dfdcc78b7",
  "model": "bytedance:2@2",
  "positivePrompt": "A cinematic wide-shot of a moonlit desert festival in a hidden oasis canyon, rows of lanterns swaying in the warm night air, a lead dancer in mirrored silk and jeweled veil performing fluid contemporary choreography along a shallow reflecting pool, followed by a procession of drummers and ribbon performers moving in synchronized patterns. Fine sand drifts through blue-silver moonbeams, palm shadows ripple across carved stone walls, embroidered fabrics shimmer, expressive body movement, elegant footwork, natural cloth physics, subtle dust trails, polished cinematic lighting, high temporal consistency, richly detailed environment, vibrant but refined color palette, immersive, graceful, hypnotic atmosphere.",
  "width": 960,
  "height": 416,
  "duration": 6,
  "seed": 74606,
  "providerSettings": {
    "bytedance": {
      "cameraFixed": false
    }
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "59d02567-ead8-47ef-94c7-d04dfdcc78b7",
  "videoUUID": "bd43de98-3a59-4468-b45a-4e5245461582",
  "videoURL": "https://vm.runware.ai/video/os/a24d12/ws/5/vi/bd43de98-3a59-4468-b45a-4e5245461582.mp4",
  "seed": 74606,
  "cost": 0.0367
}
```

---

### Moonlit Rooftop Flamenco Solo (Image to Video)

[Watch video](https://assets.runware.ai/examples/bytedance-seedance-1-0-pro-fast/3cd259e5-5f39-4e99-b281-10a317b374d1.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "7c5a9bb5-c235-4430-b4de-4bf3dc2b6d87",
  "model": "bytedance:2@2",
  "positivePrompt": "A passionate flamenco solo unfolding on a moonlit Spanish rooftop terrace. The dancer begins from the reference pose and flows into sharp footwork, proud posture, expressive arm arcs, precise hand flourishes, and a powerful turn that sends the layered red dress rippling in the night air. Warm lantern light glows against cool moonlight, casting dynamic shadows across the tiles. Cinematic performance energy, graceful fabric motion, realistic anatomy, strong temporal consistency, polished professional choreography, atmospheric and emotionally intense.",
  "width": 864,
  "height": 480,
  "duration": 6,
  "seed": 51013,
  "providerSettings": {
    "bytedance": {
      "cameraFixed": false
    }
  },
  "inputs": {
    "frameImages": [
      {
        "image": "https://assets.runware.ai/assets/inputs/1bf0a64a-8c92-4d8a-92b9-df422a4082c4.jpg",
        "frame": "first"
      }
    ]
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "7c5a9bb5-c235-4430-b4de-4bf3dc2b6d87",
  "videoUUID": "4f63a6d4-801a-472d-9be0-895520d9a618",
  "videoURL": "https://vm.runware.ai/video/os/a14d18/ws/5/vi/4f63a6d4-801a-472d-9be0-895520d9a618.mp4",
  "seed": 51013,
  "cost": 0.03811
}
```

---

### Moonlit Rooftop K-Pop Showcase (Text to Video)

[Watch video](https://assets.runware.ai/examples/bytedance-seedance-1-0-pro-fast/6e3cc2cd-643b-4abb-9f8a-d639574b8f8a.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "79570092-b2dd-421a-8fb5-e91657e025ab",
  "model": "bytedance:2@2",
  "positivePrompt": "A charismatic solo K-pop dancer performing on a moonlit rooftop stage above a futuristic Seoul skyline, shimmering LED floor reflections, silver and midnight-blue streetwear with subtle sequins, precise synchronized choreography with sharp arm lines, smooth footwork, confident facial expression, cinematic concert atmosphere, soft haze, cool neon signs in the distance, rim lighting, realistic human motion, polished music-video styling, high temporal consistency, detailed environment, fixed frontal camera, no camera movement",
  "width": 864,
  "height": 480,
  "duration": 6,
  "seed": 3032,
  "providerSettings": {
    "bytedance": {
      "cameraFixed": true
    }
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "79570092-b2dd-421a-8fb5-e91657e025ab",
  "videoUUID": "a6650a58-9433-41eb-b9c6-6fdcc5ed84b8",
  "videoURL": "https://vm.runware.ai/video/os/a04d20/ws/5/vi/a6650a58-9433-41eb-b9c6-6fdcc5ed84b8.mp4",
  "seed": 3032,
  "cost": 0.03811
}
```

---

### Moonlit Desert Festival Dancer (Text to Video)

[Watch video](https://assets.runware.ai/examples/bytedance-seedance-1-0-pro-fast/af2bbeee-6f4b-49cb-a26b-f7ae5f371bf8.mp4)

**Request**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "babd8ddd-2a98-4e8e-9f03-446426cec74c",
  "model": "bytedance:2@2",
  "positivePrompt": "A graceful contemporary dancer performing alone on a glowing circular stage at a moonlit desert festival, surrounded by suspended lanterns, silk banners fluttering in the warm night wind, distant dunes and a giant crescent moon on the horizon. Flowing iridescent costume with long translucent sleeves, elegant spins, sweeping arm lines, soft footwork kicking up sparkling dust, expressive face, cinematic lighting, teal and amber color palette, subtle haze, shallow depth of field, premium music-video aesthetic, smooth natural body motion, strong temporal consistency, highly detailed, atmospheric and mesmerizing.",
  "width": 864,
  "height": 480,
  "duration": 6,
  "seed": 21378,
  "providerSettings": {
    "bytedance": {
      "cameraFixed": false
    }
  }
}
```

**Response**:

```json
{
  "taskType": "videoInference",
  "taskUUID": "babd8ddd-2a98-4e8e-9f03-446426cec74c",
  "videoUUID": "94ca4ca1-ab5c-4559-abf5-861070a859ea",
  "videoURL": "https://vm.runware.ai/video/os/a13d12/ws/5/vi/94ca4ca1-ab5c-4559-abf5-861070a859ea.mp4",
  "seed": 21378,
  "cost": 0.03811
}
```