GET

/v1/schemas/fal/video/fal-ai/ltx-2.3/text-to-video

Accept:

kind inputactivity videohash fd2a97a6…extracted Oct 9, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. upstream-spec Source trace `19bca5fe74baaddc315ee6c6352bd75d9ead275c4831a7aaa96a94bf4ef029b0` { "fetchedAt": 1791522002, "extractorVersion": "1", "verifiedAt": null }

Request body

7 properties · 1 required · 0 $defs

property	type	description	constraints
prompt*	string	The prompt to use for the generated video	length ≥ 1 · length ≤ 5000
aspect_ratio	enum	The aspect ratio of the generated video	16:9 \| 9:16 · default: "16:9"
fps	enum	The frames per second of the generated video	24 \| 25 \| 48 \| 50 · default: 25
resolution	enum	The resolution of the generated video	1080p \| 1440p \| 2160p · default: "1080p"
duration	enum	The duration of the generated video in seconds	6 \| 8 \| 10 · default: 6
generate_audio	boolean	Whether to generate audio for the generated video	default: true
enable_safety_checker	boolean	Authorized callers may set false to request relaxed screening.	default: true

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/ltx-2.3/text-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}