GET

/v1/schemas/fal/video/fal-ai%2Ffast-animatediff%2Ftext-to-video

kind inputactivity videohash e108178aextracted Jul 6, 2026version currentsource upstream spec ↗

Request body

9 properties · 1 required · 1 $defs
propertytypedescriptionconstraints
prompt*stringThe prompt to use for generating the video. Be as descriptive as possible for best results.
seedinteger The same seed and the same prompt given to the same version of Stable Diffusion will output the same image every time. nullable
negative_promptstringThe negative prompt to use. Use it to address details that you don't want in the image. This could be colors, objects, scenery and even the small details (e.g. moustache, blurry, low resolution).default: "(bad quality, worst quality:1.2…
fpsintegerNumber of frames per second to extract from the video.1 ≤ n ≤ 16 · default: 8
num_inference_stepsintegerThe number of inference steps to perform.1 ≤ n ≤ 50 · default: 25
num_framesintegerThe number of frames to generate for the video.1 ≤ n ≤ 32 · default: 16
guidance_scalenumberThe CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.0 ≤ n ≤ 20 · default: 7.5
motionsenum[]The motions to apply to the video.
video_sizeImageSize | enumThe size of the video to generate.default: "square"

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/fast-animatediff/text-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}