GET

/v1/schemas/fal/video/fal-ai%2Fflashhead

Accept:

kind inputactivity videohash c5850b9c…extracted Jul 6, 2026version currentsource upstream spec ↗

Request body

5 properties · 2 required · 0 $defs

property	type	description	constraints
image_url*	string	URL of the face reference image. Portrait recommended.
text*	string	Text to speak. Converted to speech via ElevenLabs.
voice	enum	ElevenLabs voice name.	Aria \| Roger \| Sarah \| Laura \| Charlie \| George · +14 more · default: "Aria"
seed	integer	Random seed for reproducibility.	nullable
stability	number	Voice 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", …}]}