GET

/v1/schemas/fal/video/fal-ai/pixverse/v6/extend

Accept:

kind inputactivity videohash caf04ed1…extracted Jul 10, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `f261bf85f567faeeb82f32b61f5dd7d5313a58cbe4ad7f24e70960ea4fd50aee` { "fetchedAt": 1783659678, "extractorVersion": "1", "verifiedAt": null }

Request body

8 properties · 2 required · 0 $defs

property	type	description	constraints
prompt*	string	Prompt describing how to extend the video. Limited to 2048 UTF-8 encoded bytes. Because the limit counts bytes rather than characters, emoji and non-Latin or accented characters (which use multiple bytes each) can push a visually short prompt over the cap.
video_url*	string	URL of the input video to extend
style	enum	The style of the extended video	anime \| 3d_animation \| clay \| comic \| cyberpunk · nullable
negative_prompt	string	Negative prompt to be used for the generation. Limited to 2048 UTF-8 encoded bytes. Because the limit counts bytes rather than characters, emoji and non-Latin or accented characters (which use multiple bytes each) can push a visually short prompt over the cap.	default: ""
seed	integer	Random seed for generation	nullable
duration	integer	The duration of the generated video in seconds. v6 supports values from 1 to 15 seconds	1 ≤ n ≤ 15 · default: 5
resolution	enum	The resolution of the generated video	360p \| 540p \| 720p \| 1080p · default: "720p"
generate_audio_switch	boolean	Enable audio generation (BGM, SFX, dialogue).	default: false

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/pixverse/v6/extend","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}