GET

/v1/schemas/fal/video/fal-ai/flashhead

kind inputactivity videohash c5850b9c…extracted Jul 6, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.
Source trace
cfe5be44aeaca32f54b3bd960e180be13baa2edfd7e39d2ec9a4620244ce7239
{
  "fetchedAt": 1783331098,
  "extractorVersion": "1",
  "verifiedAt": null
}

Request body

5 properties · 2 required · 0 $defs
propertytypedescriptionconstraints
image_url*stringURL of the face reference image. Portrait recommended.
text*stringText to speak. Converted to speech via ElevenLabs.
voiceenumElevenLabs voice name.Aria | Roger | Sarah | Laura | Charlie | George · +14 more · default: "Aria"
seedintegerRandom seed for reproducibility.nullable
stabilitynumberVoice stability (0-1).0 ≤ n ≤ 1 · default: 0.5

Validate a payload

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