API de SeeDance 1.0 Pro

What is SeeDance 1.0 Pro?

SeeDance 1.0 Pro is ByteDance's frame-guided video model in the SeeDance 1.0 family. On UnificAlly, this route starts from an image: provide a first frame, a last frame, or both. A text prompt is optional and can describe the intended subject motion, camera behavior, and transition. At least one frame is required, so this route is better suited to controlled image-to-video and endpoint interpolation than prompt-only generation.

The available API controls are explicit: 4–12 second duration in one-second increments, 480p, 720p, or 1080p output, six selectable aspect ratios, an optional fixed-camera flag, and an integer seed. ByteDance's Seedance overview describes the wider model family, while the UnificAlly parameter reference defines the request accepted by this endpoint.

Key features of SeeDance 1.0 Pro

What SeeDance 1.0 Pro is best for

• Product transitions

  Anchor the opening and closing product views, then describe the motion that should connect them.

• Image-to-video shots

  Animate an approved key visual while keeping its initial composition available as an explicit input.

• Storyboard interpolation

  Use two storyboard frames to communicate the desired endpoints of a short shot.

• Stable-camera clips

  Enable the fixed-camera option for scenes that should read as subject animation rather than a camera move.

• Multi-format delivery

  Choose among landscape, square, vertical, and wider aspect ratios for different placements.

SeeDance 1.0 Pro use cases

Animate a product still into a second approved packshot without asking the model to invent the ending composition. Turn an illustration into a short vertical clip for a social placement, using the first frame as the visual anchor. Build a transition between two storyboard panels and use the prompt to specify pacing and subject motion. For repeatable evaluation, keep the prompt, source frames, duration, resolution, aspect ratio, and seed recorded together; changing one variable at a time makes output differences easier to attribute.

SeeDance 1.0 Pro API examples

Submit work to /v1/tasks. The example uses both endpoints; a request may instead supply only one of them. See the full parameter reference for current validation limits.

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "bytedance/seedance-1.0-pro",
    "input": {
      "prompt": "A slow, stable transition as the package rotates toward camera",
      "first_frame_url": "https://example.com/opening.png",
      "last_frame_url": "https://example.com/closing.png",
      "duration": 8,
      "resolution": "1080p",
      "aspect_ratio": "16:9",
      "camera_fixed": true,
      "seed": 42
    }
  }'

The response includes a task_id. Poll GET /v1/tasks/<task_id> or include a callback URL in your integration to receive the completed video asynchronously.