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Black Forest Labs · Video model
FLUX.3 Video
black-forest-labs/flux-3-video- Video
FLUX.3 Video is a video generation model from Black Forest Labs. It supports text-to-video, image-guided generation with opening and closing keyframes, and video continuation workflows, making it suited for controlled...
Specifications
- Durations
- 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 s
- Resolutions
- 720p, 1080p
- Aspect ratios
- 21:9, 16:9, 4:3, 1:1, 3:4, 9:16
- Start from an image
- first frame, last frame
- Edit a video
- no
- Audio
- native, on by default
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 $OMNIRAIL_KEY" -H "Content-Type: application/json" \
-d '{"model":"black-forest-labs/flux-3-video","prompt":"a paper boat drifting down a rainy street, slow dolly in","duration":5,"resolution":"720p","aspect_ratio":"16:9","generate_audio":false}'
# 2. poll every ~30 s until status is "completed"
curl https://omnirail.org/api/v1/videos/$JOB_ID -H "Authorization: Bearer $OMNIRAIL_KEY"