falVideo to videoComing soon

fal-ai/pixverse/extend/fast

Name: fal-ai/pixverse/extend/fast
Brand: fal

fal-ai/pixverse/extend/fast is a video 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.

Price pending

Pricing

Price pending.

Limits

Runs: In the background
Returns: video
Longest queue wait: 3600s
Run deadline: 1800s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`video_url` required	URL or file	—	URL of the input video to extend
`prompt` required	text	—	Prompt describing how to extend the video
`negative_prompt`	text		Negative prompt to be used for the generation
`style`	one of anime, 3d_animation, clay, comic, cyberpunk	—	The style of the extended video
`resolution`	one of 360p, 540p, 720p	720p	The resolution of the generated video. Fast mode doesn't support 1080p
`model`	one of v3.5, v4, v4.5, v5, v5.5, v5.6, v6	v4.5	The model version to use for generation
`seed`	number (whole)	—	Random seed for generation
`generate_audio_switch`	true or false	false	Enable audio generation (BGM, SFX, dialogue). Supported in v5.6+ models.

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": "fal-ai/pixverse/extend/fast",
    "input": {
      "video_url": "https://v3.fal.media/files/rabbit/88-jI3VWXU4Q8kSNrWo3c_output.mp4",
      "prompt": "A kid is talking into camera"
    }
  }'