Seedance 2.0 Mini Image to Video API Reference

Request body

Submit an async generation request. The model field selects the model; other fields are model-specific input parameters.

stringmodelrequired

Model identifier. Set to bytedance/seedance/2.0/mini/image-to-video.

Default: bytedance/seedance/2.0/mini/image-to-video

stringpromptrequired

The text prompt describing the desired motion and action for the video.

stringimagerequired

The URL of the starting frame image to animate. Supported formats: JPEG, PNG, WebP. Max 30 MB.

Optional<string>end_image

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. Max 30 MB.

Optional<string>resolution

Video resolution - 480p for faster generation, 720p for balance.

Allowed values: 480p, 720p

Default: 720p

Optional<integer>duration

Duration of the video in seconds. Supports 4 to 15 seconds, or auto to let the model decide based on the prompt.

Allowed values: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15

Default: auto

Optional<boolean>generate_audio

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.

Default: true

Optional<string>end_user_id

The unique user ID of the end user.

Optional<string>aspect_ratio

The aspect ratio of the generated image.

Allowed values: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16

Response Schema

The 202 submit response is pending or running and contains only id, status, and model. Poll GET /v1/run/{id} for the same public status envelope.

stringidrequired

Opaque SandBase run identifier. Use it exactly as returned; no prefix is guaranteed.

stringstatusrequired

Current public run status.

Allowed values: pending, running, completed, failed, timeout

Optional<string>model

Public SandBase model name used for this run.

Optional<array<object>>outputs

Present only for completed runs. Each object is capability-specific; inspect the selected model schema for its fields.

Optional<object>error

Present only for failed or timeout runs. Contains a public error type and sanitized message.

Optional<string>error.type

Stable public error category.

Optional<string>error.message

Sanitized error message safe to show to clients.

Optional<object>usage

Usage details when available.

Model capabilities

array<string>capability_tagsrequired

Capabilities declared by the model registry.

Default: image-to-video

stringexecution_moderequired

Execution mode declared by the model registry.

Default: async

# 1. Submit a generation request curl -X POST https://api.sandbase.ai/v1/run \ -H "Authorization: Bearer $SANDBASE_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "bytedance/seedance/2.0/mini/image-to-video", "prompt": "An octopus finds a football in the ocean and excitedly calls its octopus friends to come and play. Cut scene to an octopus football game under the sea.", "image": "https://v3b.fal.media/files/b/0a8eba37/Cqg-4Uwzyz4DELfceT1CF_a17e588773ec45b1a9e6f100a787b80b.jpg", "duration": "auto", "aspect_ratio": "21:9" }' # 2. If the response is still running, poll the returned id curl https://api.sandbase.ai/v1/run/f3d2e8a1-7c4b-4a12-9d2e-123456789abc \ -H "Authorization: Bearer $SANDBASE_API_KEY"