About FLUX 3 Video
FLUX 3 Video generates video from a text prompt, from keyframes, or by continuing an existing clip. Clips run 5 to 20 seconds at 720p or 1080p, with synchronized audio generated by default.
Draft mode trades quality for a lower per-second rate and is useful for iterating before a full generation.
Ready to build with FLUX 3 Video?
Try FLUX 3 Video in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.
curl -sSf -X POST https://hub.oxen.ai/api/ai/videos/generate \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OXEN_API_KEY" \
-d '{
"model": "flux-3-video",
"prompt": "A lone lighthouse keeper climbs a spiral staircase at dawn, storm clouds breaking outside the glass.",
"generate_audio": true,
"aspect_ratio": "auto",
"resolution": "720p",
"duration": 5,
"draft": false,
"safety_tolerance": 2
}'Request parameters
Every field FLUX 3 Video accepts in the request body. See the API reference for response formats.
POST
https://hub.oxen.ai/api/ai/videos/generate| Field | Type | Required | Default | Description |
|---|---|---|---|---|
prompt | string | Yes | — | Free-form prompt describing the video. |
input_images | array<string>nullable | No | — | Images that become frames of the generated video, 1 to 10 in order: one image starts the video, two start and end it, and beyond that the first starts it, the last ends it, and the rest fall evenly in between. They are frames, not references, so the prompt cannot cite them. Leave empty to generate from the prompt alone. Cannot be combined with Continue From Video. |
input_video | stringuri | No | — | Clip to extend; the generated video carries on from its final frames. MP4. Cannot be combined with Keyframes. Billed at a higher per-second rate than generating from a prompt or keyframes. |
generate_audio | boolean | No | true | Generate synchronized audio for the video. |
aspect_ratio | string | No | "auto" | auto21:92:116:94:31:13:49:16 |
resolution | string | No | "720p" | 720p1080p |
duration | integer | No | 5 | Range: 5 – 20 |
draft | boolean | No | false | Draft mode: rapid, cost-effective exploration at a lower per-second rate. HD only. |
safety_tolerance | integer | No | 2 | Safety filter strictness, 0 is strictest.01234 |