GET
/v1/schemas/fal/video/minimax/h3-max/text-to-video
Accept:
| field | recorded source |
|---|---|
| schema | Source linked above. upstream-spec Source trace92023919feb412a8eddf05367140421c04f8f7ade3c69a8f723e1cf423a83a75{
"fetchedAt": 1794027603,
"extractorVersion": "1",
"verifiedAt": null
} |
Request body
9 properties · 2 required · 0 $defs| property | type | description | constraints |
|---|---|---|---|
| prompt_expansion_mode* | string | How much effort to spend rewriting the prompt before generation. 'disabled' skips prompt expansion. 'balanced' returns in about a second. 'quality' spends up to ~30s on a richer prompt. | default: "balanced" |
| prompt* | string | Text prompt for video generation | length ≥ 1 · length ≤ 50000 |
| sync_mode | boolean | Return the generated video as base64 instead of a CDN URL. | default: false |
| seed | integer | Random seed. A random seed is selected when omitted. | nullable |
| enable_safety_checker | boolean | If set to true, the safety checker will be enabled. | default: true |
| aspect_ratio | enum | The aspect ratio of the generated video. | 21:9 | 16:9 | 4:3 | 1:1 | 3:4 | 9:16 · default: "16:9" |
| target_audio_url | string | Optional URL of an audio clip at least 2 seconds long (maximum 15 MB) to pin to the generated soundtrack. Longer clips are trimmed to the generated video's length, keeping the beginning. The original audio replaces the output soundtrack, padded with silence if shorter than the video, without changing playback speed. Exceptionally high sample rates may be resampled to 96 kHz. Accepts an HTTP(S) URL or a base64 data URI. | length ≥ 1 · nullable |
| resolution | enum | The native generation resolution, or 1080P latent refinement from a native 768P source. | 480P | 768P | 1080P · default: "768P" |
| duration | number | Video length in seconds. The output can run up to about 0.7 s longer than requested. Use at least 2 s with target_audio_url. | 0.92 ≤ n ≤ 15 · default: 5 |
Validate a payload
before you spend tokensshell
$ curl -X POST https://modelschemas.com/v1/validate \
-d '{"provider":"fal","endpointId":"minimax/h3-max/text-to-video","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}