FLUX 3 Start-End-to-Video generates 5-20 second transition videos between required start and end images, using prompt guidance to control action, camera movement, visual style, motion continuity, and optional synchronized audio at 720P / 1080P output.
Every plan, free included. Runs spend your account’s credits.
The smallest request that works: the required fields only.
Percify APIcurl https://api.percify.io/v3/playground/v1/run \
-H "Authorization: Bearer $PERCIFY_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"modelId": "flux-3-video-start-end",
"input": {
"prompt": "A red fox running through fresh snow at sunrise",
"start_image": "https://example.com/photo.jpg",
"end_image": "https://example.com/photo.jpg"
}
}'7 fields in input, required first.
promptRequiredThe text prompt describing the video you want to generate.
end_imageRequiredOptional image used as the edited video's first frame.
start_imageRequiredOptional image used as the edited video's first frame.
durationOptionalVideo length in seconds (5-20).
resolutionOptional
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Pick a use case, run it in the playground, copy the call.
Every plan, free included. Runs spend your account’s credits.
Resolution of the generated video.
aspect_ratioOptionalThe aspect ratio of the generated media.
generate_audioOptionalWhether to generate audio for the video.