Seedance 2.5
bytedance/seedance-2.5Generate a video from text and reference media.
- token
- Price: $0.0000107Price: $0.0000064
- Bytedance
- 25 min
Overview
Generate a 4–30 second video with optional synchronized audio. 480p and 720p output are supported. Accepts text, image, video and audio content. Audio requires text, image or video. Any video reference selects the with_video output-token tier; other inputs use without_video. See the pricing table for your plan rates. 4K output is unsupported. Billing uses the completed task's output tokens.
After COMPLETED, read run.output.video_url, run.output.duration and run.output.resolution. Download the temporary video URL promptly.
Input
These go in the input object of the run request.
| Field | Type | Required | Description |
|---|---|---|---|
| prompt | string | No | Describe the scene and movement. Use either prompt or content. |
| content | array | No | Nonempty native text/image_url/video_url/audio_url items; media URLs require HTTPS, images also accept inline PNG/JPEG/WebP data. Optional roles: first_frame/reference_image, reference_video, reference_audio. Mutually exclusive with prompt. |
| input_mode | string | No | Optional assertion of the automatically derived content tier. Must match the supplied content. Allowed: without_video, with_video |
| resolution | string | No | Output resolution. Allowed: 480p, 720p Default: "720p" |
| duration | integer | No | Requested duration: -1 for automatic, or 4–30 seconds. Output uses actual measured duration. Default: 5 |
| ratio | string | No | Output aspect ratio. Allowed: 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, adaptive Default: "adaptive" |
| generate_audio | boolean | No | Generate synchronized audio. Default: true |
| output_format | string | No | Output video container. Allowed: mp4, mov |
| watermark | boolean | No | Add a generation watermark. Default: false |
Requests up to 1 MB.
Example
Use your own API key and a saved idempotency key for each new job. Replace image or media placeholders with your own publicly reachable HTTPS URLs. Keep the same key and request body when recovering a timeout.
# Set once per job; reuse this key and the identical body after a timeout.
: "${AGENTSKY_IDEMPOTENCY_KEY:?Set a unique, saved key for this job}"
curl --fail-with-body https://gateway.agentsky.dev/v1/run \
-H "authorization: Bearer $AGENTSKY_API_KEY" \
-H "content-type: application/json" \
-H "Idempotency-Key: $AGENTSKY_IDEMPOTENCY_KEY" \
-d '{"provider":"bytedance","endpoint":"seedance-2.5","input":{"prompt":"A blue sphere slowly rotates on a white background.","duration":5,"resolution":"720p"}}'
# If status is READY/RUNNING, poll GET /v1/runs/{runId} with the same API key.Pricing
without_video (default): $0.0000107 · with_video: $0.0000064 per token using your plan when signed in. Read the final customer charge from price.amount.value after the run finishes. A RUNNING response is not the final bill.