GET

/v1/schemas/fal/video/fal-ai%2Fhunyuan-video-image-to-video

kind inputactivity videohash 0407858bextracted Jul 6, 2026version currentsource upstream spec ↗

Request body

7 properties · 2 required · 0 $defs
propertytypedescriptionconstraints
image_url*stringURL of the image input.
prompt*stringThe prompt to generate the video from.length ≤ 1000
seedintegerThe seed to use for generating the video.nullable
resolutionconstThe resolution of the video to generate."720p" · default: "720p"
i2v_stabilitybooleanTurning on I2V Stability reduces hallucination but also reduces motion.default: false
num_framesconstThe number of frames to generate."129" · default: 129
aspect_ratioenumThe aspect ratio of the video to generate.16:9 | 9:16 · default: "16:9"

Validate a payload

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