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ByteDance · Video model
Seedance 2.5
bytedance/seedance-2.5- Video
Seedance 2.5 is a video generation model from ByteDance. It is suited for long-form storytelling, multimodal reference-based generation, video editing, and video extension. It supports first-frame and first-and-last-frame control, up...
Specifications
- Durations
- 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 s
- Resolutions
- 480p, 720p
- Aspect ratios
- 16:9, 4:3, 1:1, 3:4, 9:16, 21:9
- Sizes
- 854x480, 752x560, 640x640, 560x752, 480x854, 992x432, 1280x720, 1112x834, 960x960, 834x1112, 720x1280, 1470x630
- Start from an image
- first frame, last frame
- Edit a video
- yes, pass input_videos
- Audio
- native, on by default
- Seed
- supported
Use it
POST /api/v1/videos · MCP generate_video · get_video · full reference
# 1. submit (202 with id, token, poll_url)
curl https://omnirail.org/api/v1/videos \
-H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
-d '{"model":"bytedance/seedance-2.5","prompt":"a paper boat drifting down a rainy street, slow dolly in","duration":4,"resolution":"480p","aspect_ratio":"16:9","generate_audio":false}'
# 2. poll every ~30 s until status is "completed"
curl https://omnirail.org/api/v1/videos/$JOB_ID -H "Authorization: Bearer $OMNIRAIL_KEY"