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US-hosted ByteDance Seedance 2.5 animates still images with synchronized audio and optional end-frame control. Generate videos up to 30 seconds at 480p or 720p.
Example
Details
- Accepts
- image
Pricing
- Input
- 2675 cr / 1M tokens
Prices in credits (1 credit = $0.01).
Data schema
Input
| Field | Type | Description |
|---|---|---|
| codec | stringenum: auto, H264, H265 | 'auto' retains default video codec behaviour; 'H264' uses H.264; 'H265' uses H.265. |
| draft | boolean | Generate a draft preview at 480p, overriding resolution. Returns a draft_id for completing the draft at 1080p within 7 days. |
| prompt | — | The text prompt describing the desired motion and action for the video. |
| duration | stringenum: auto, 4, 5, 6, 7, 8… | Duration of the video in seconds. Supports 4 to 30 seconds, or auto to let the model decide based on the prompt. |
| image_urlrequired | string | The URL of the starting frame image to animate. Supported formats: JPEG, PNG, WebP, BMP, TIFF, GIF, HEIC, HEIF. Max 30 MB. |
| resolution | stringenum: 480p, 720p, 1080p | Video resolution - 480p for faster generation, 720p for balance, 1080p for high quality. |
| end_user_id | — | The unique user ID of the end user. |
| aspect_ratio | string | The aspect ratio of the generated video. Always "auto" for image-to-video |
| bitrate_mode | stringenum: standard, high | Output bitrate mode. 'high' requests a higher-quality, larger-file encode from the model; 'standard' uses the default bitrate. |
| end_image_url | — | The URL of the image to use as the last frame of the video. When provided, the generated video will transition from the starting image to this ending image. Supported formats: JPEG, PNG, WebP, BMP, TIFF, GIF, HEIC, HEIF. Max 30 MB. |
| generate_audio | boolean | Whether to generate synchronized audio for the video, including sound effects, ambient sounds, and lip-synced speech. The cost of video generation is the same regardless of whether audio is generated or not. |
Output
| Field | Type | Description |
|---|---|---|
| seed | integer | The seed used for generation. |
| video | — | The generated video file. |
| draft_id | — | The draft ID, or null when draft mode is disabled. Complete this draft within 14 days (7 days for US drafts) using the same account. |