GET
/v1/schemas/fal/video/fal-ai/ltx-2.3-quality/hdr
Accept:
| field | recorded source |
|---|---|
| schema | Source linked above.Source tracea5189930a0bb0433c790c9fc49dabefc11a0108513f7700cc6b9405767cdd1a7{
"fetchedAt": 1783331098,
"extractorVersion": "1",
"verifiedAt": null
} |
Request body
15 properties · 2 required · 1 $defs| property | type | description | constraints |
|---|---|---|---|
| video_url* | string | SDR input video to lift into HDR. This mode is video-conditioned. | |
| prompt* | string | The prompt to guide generation. | |
| num_frames | integer | The number of frames to generate. | 9 ≤ n ≤ 481 · default: 121 |
| enable_prompt_expansion | boolean | Whether to enable prompt expansion. | default: true |
| frames_per_second | number | Frames per second of the generated video. | 1 ≤ n ≤ 60 · default: 24 |
| seed | integer | Random seed for reproducibility. If None, a random seed is chosen. | nullable |
| enable_safety_checker | boolean | Whether to enable the safety checker. | default: true |
| guidance_scale | number | Classifier-free guidance scale. The default is tuned for fast, high-quality generation. | 1 ≤ n ≤ 20 · default: 1 |
| sync_mode | boolean | If True, the media is returned as a data URI inline in the response. Useful for short-lived requests and tests. | default: false |
| num_inference_steps | integer | Number of inference steps. Defaults to 15 and can be increased up to 30. | 8 ≤ n ≤ 30 · default: 15 |
| video_quality | enum | The quality preset of the generated video. | low | medium | high | maximum · default: "high" |
| generate_audio | boolean | Whether to include audio in the returned video. When disabled, the final MP4 is returned without an audio track. | default: true |
| negative_prompt | string | The negative prompt to steer generation away from. | default: "color distortion, overexposure,… |
| resolution | ImageSize | enum | Output video size. The output is generated at up to ~720p (shorter side capped at 704px); larger requested sizes are scaled down, preserving the aspect ratio. | default: "auto" |
| video_write_mode | enum | The write mode of the generated video. | fast | balanced | small · default: "balanced" |
Types
1 $defsImageSizeobject
| height | integer | The height of the generated image. | 0 < n ≤ 14142 · default: 512 |
| width | integer | The width of the generated image. | 0 < n ≤ 14142 · default: 512 |
Validate a payload
before you spend tokensshell
$ curl -X POST https://modelschemas.com/v1/validate \
-d '{"provider":"fal","endpointId":"fal-ai/ltx-2.3-quality/hdr","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}