GET

/v1/schemas/fal/video/fal-ai/ltx-2/retake-video

Accept:

kind inputactivity videohash d12f648e…extracted Jul 6, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `acd2564d2cd4b0978fb604478856bb15639c586f540e1fc022acc09d77e8b888` { "fetchedAt": 1783330412, "extractorVersion": "1", "verifiedAt": null }

Request body

5 properties · 2 required · 0 $defs

property	type	description	constraints
video_url*	string	The URL of the video to retake
prompt*	string	The prompt to retake the video with	length ≥ 1 · length ≤ 5000
retake_mode	enum	The retake mode to use for the retake	replace_audio \| replace_video \| replace_audio_and_video · default: "replace_audio_and_video"
start_time	number	The start time of the video to retake in seconds	0 ≤ n ≤ 20 · default: 0
duration	number	The duration of the video to retake in seconds	2 ≤ n ≤ 20 · default: 5

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/ltx-2/retake-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}