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falImage to videoComing soon

blackforestlabs/flux-3/keyframes-to-video/draft

blackforestlabs/flux-3/keyframes-to-video/draft is an image to video tool from fal 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.

Priced by usage

Pricing

duration: 5 (default) $0.195, 6 $0.234, 7 $0.273, 8 $0.312, 9 $0.351, 10 $0.39, 11 $0.429, 12 $0.468, 13 $0.507, 14 $0.546, 15 $0.585, 16 $0.624, 17 $0.663, 18 $0.702, 19 $0.741, 20 $0.78, otherwise $0.78 per run. The final charge comes from usage.

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

FieldKindDefaultDescription
prompt requiredtext—The text prompt describing the draft video.
aspect_ratioone of
auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4, 9:16
autoAspect ratio of the generated draft. `auto` lets the model choose.
durationone of
5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
5Draft duration in whole seconds from 5 through 20. An explicit duration is required to validate keyframe positions.
generate_audiotrue or falsetrueWhether to generate audio for the draft video.
safety_tolerancenumber (whole)
0 to 4
2The safety tolerance level for the generated video. 0 is the strictest and 4 is the most permissive.
keyframes requiredJSON—Keyframe images pinned to frame positions in the generated draft. Up to 10 keyframes with unique `frame_index` values.

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": "fal",
    "model": "blackforestlabs/flux-3/keyframes-to-video/draft",
    "input": {
      "prompt": "A red panda walks along a mossy log in a sunlit forest, one continuous unbroken shot.",
      "keyframes": {}
    }
  }'