
Text to Video
16:9A blue race car drifting around a snow-covered track at night under bright floodlights, snow spray, cinematic motion
bytedance/seedance-1-proSeedance 1.0 Pro video generation API by ByteDance — high-fidelity cinematic video with multi-shot transitions at 720p and 1080p resolution.
curl https://api.runbase.net/v1/runs \
-H "Authorization: Bearer $RUNBASE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "bytedance/seedance-1-pro",
"input": {
"prompt": "A cinematic product photo of a ceramic lamp",
"aspect_ratio": "1:1",
"resolution": "1K"
}
}'
A blue race car drifting around a snow-covered track at night under bright floodlights, snow spray, cinematic motion

A skier carving down a snowy mountain slope, ski poles in hand, alpine peaks in the background

The skier powers down the slope kicking up a wall of snow, dynamic camera follow
Seedance 1.0 Pro is ByteDance's first-generation high-fidelity video model, released in June 2025. It generates cinematic video at 720p or 1080p with smooth multi-shot transitions — camera cuts and angle changes are handled within a single generation pass. The model supports text-to-video and image-to-video but does not produce audio; that capability was added in the later 1.5 Pro release.
Narrative-driven brand films and commercial content. Multi-shot sequences with camera transitions — wide establishing shots cutting to close-ups. Image-to-video for animating hero images or key art into motion. Short cinematic clips for presentations and pitch decks.
All parameters are passed in the input object of the run request.
| Parameter | Required | Description |
|---|---|---|
| prompt | Yes | Text description (1–10000 chars) |
| aspect_ratio | No | Default 16:9. Options: 16:9, 9:16, 4:3, 3:4, 1:1, 21:9 |
| resolution | No | Default 720p. Options: 720p, 1080p |
| duration | No | Default 5. Options: 5s, 10s |
| image_urls | No | Source image (max 1, max 10 MB) for image-to-video |
Pro handles multi-shot well. Use phrases like "wide shot of the street, then cut to a close-up of the character's face" to guide transitions within a single clip.
Terms like "tracking shot," "dolly zoom," "rack focus," and "slow pan" translate directly into camera behavior. Be specific about movement direction and speed.
Use 5-second clips for single-action shots. Reserve 10 seconds for prompts with camera transitions or multiple beats — it gives the model room to pace the sequence.
Pro produces higher visual fidelity and handles multi-shot transitions more coherently. It also starts at 720p (no 480p), while Lite supports all three resolutions. Pro costs more per generation.
No. For synchronized audio, dialogue, or sound effects, use Seedance 1.5 Pro or Seedance 2.0.
Yes. Describe transitions in natural language — the model interprets multi-shot directions and produces cuts, pans, and angle changes within a single generation.