ReplicateImage to videoComing soon

black-forest-labs/flux-3

Name: black-forest-labs/flux-3
Brand: Replicate

black-forest-labs/flux-3 is an image to video tool from Replicate that runs in the background and returns video. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Price pending

Pricing

Price pending.

Limits

Runs: In the background
Returns: video
Longest queue wait: 3600s
Run deadline: 3600s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`prompt` required	text	—	Text description of the video to generate. Plain language works — the prompt is interpreted and expanded before generation. Describe the scene, action, camera moves, and any audio you want.
`draft`	true or false	false	Generate a fast, low-cost draft preview instead of a full-quality clip. Drafts are 720p.
`images`	list	[]	Optional images to drive the video, placed on screen pixel for pixel. One image opens the clip (image-to-video). Two images start and end it. Three or more (up to 10) become a storyboard — the first starts it, the last ends it, and the rest fall evenly in between (needs a duration). Leave empty for text-to-video. Must be PNG, JPEG, or WebP.
`duration`	JSON	auto	Length of the generated clip in seconds. 'auto' lets the model pick to fit the content. Three or more images need an explicit duration.
`resolution`	JSON	720p	Output resolution.
`start_video`	text	null	A video to continue from its final frames. Use this to extend a shot or chain generations into a longer sequence. Must be an mp4, at most 50MB and 15 seconds. Can't be combined with images.
`aspect_ratio`	JSON	auto	Aspect ratio of the generated video. 'auto' picks a ratio from your prompt and any inputs.
`generate_audio`	true or false	true	Generate synchronized audio (ambient sound, speech, effects). Set to false for a silent clip.
`safety_tolerance`	number (whole) 0 to 4	2	Moderation tolerance for input and output, 0 (strictest) to 4 (most permissive). Requests with image or video inputs are limited to 2.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "replicate",
    "model": "black-forest-labs/flux-3",
    "input": {
      "prompt": "<prompt>"
    }
  }'