Black Forest Labs/flux-video-edit/Released Sep 2026

FLUX Video Edit

Prompt-based clip editing with dialogue lip sync

Commercial use
Video

About FLUX Video Edit

FLUX Video Edit transforms an existing clip from a text instruction, changing only what the prompt names and leaving the rest of the shot as it was filmed. Length, framing, camera movement, timing and the source audio track all carry through untouched, so an edit lands on the original performance instead of regenerating it.

The edit vocabulary covers removing, adding or replacing objects and characters, rebuilding a setting, rewriting on-screen signage and labels, changing colours, materials, lighting and weather, restyling a whole clip, altering the action, and rewriting or translating dialogue with lip sync. Several changes can be requested in one prompt and are applied in a single pass, and a result can be fed back in as the source to develop a shot in stages.

Output follows the source: the same duration and aspect ratio at 24 fps, downscaled to 720p when the source is larger. Sources are limited to 15 seconds and 50 MB, at least 160 pixels on each side and at least 17 frames, and anything longer than 15 seconds is rejected rather than trimmed. Duration, resolution and aspect ratio cannot be set, image and audio inputs are not accepted, and masks, style or motion references and extending a clip are not supported. New dialogue cannot run longer than the line it replaces.

Ready to build with FLUX Video Edit?

Try FLUX Video Edit 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-video-edit",
  "input_video": "https://hub.oxen.ai/api/repos/ox/Oxen-AI-Assets/file/main/videos/waterfall.mp4",
  "prompt": "A cat sitting on a chair",
  "safety_tolerance": 2
}'

Request parameters

Every field FLUX Video Edit accepts in the request body. See the API reference for response formats.

POSThttps://hub.oxen.ai/api/ai/videos/generate
FieldTypeRequiredDefaultDescription
input_videostring
uri
Yes
Clip to edit. MP4, up to 15 seconds and 50 MB. The output keeps the clip's duration and aspect ratio at 24 fps, downscaled to 720p if larger.
promptstringYes
The edit to make, prompt only what you want to change. Combine several edits in one prompt. New dialogue cannot run longer than the line it replaces.
safety_toleranceintegerNo2Safety filter strictness, 0 is strictest.
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