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usamaehsan /ltx-2.5:d6d575ba
Input schema
The fields you can use to run this model with an API. If you don’t give a value for a field its default value will be used.
| Field | Type | Default value | Description |
|---|---|---|---|
| prompt |
string
|
Text prompt describing the video
|
|
| image |
string
|
Optional first-frame image (image-to-video)
|
|
| keyframe_2 |
string
|
Optional second keyframe. The video is steered to pass through this image at keyframe_2_at seconds. Leave keyframe_2_at at -1 to pin it to the final frame (first-frame/last-frame interpolation).
|
|
| keyframe_2_at |
number
|
-1
Min: -1 |
Position of keyframe_2 in seconds; -1 = last frame
|
| keyframe_3 |
string
|
Optional third keyframe
|
|
| keyframe_3_at |
number
|
-1
Min: -1 |
Position of keyframe_3 in seconds; -1 = last frame
|
| keyframe_4 |
string
|
Optional fourth keyframe
|
|
| keyframe_4_at |
number
|
-1
Min: -1 |
Position of keyframe_4 in seconds; -1 = last frame
|
| keyframe_strength |
number
|
1
Max: 1 |
How hard the keyframes are enforced. 1.0 locks them exactly; lower values let the model blend, which can look more natural.
|
| generated_keyframes |
integer
|
0
Max: 8 |
Have the model invent this many evenly spaced keyframes before filling in between them. Can improve coherence on long clips. 0 = off.
|
| audio |
string
|
Optional audio track to drive the video. The video is generated against this audio instead of the model inventing its own. When duration is 0 the clip length follows the audio.
|
|
| audio_start_time |
number
|
0
|
Seconds to skip into the audio file
|
| camera_move |
None
|
none
|
Camera motion to impose on the shot. 'none' leaves the camera to the prompt; 'static' actively holds it still.
|
| camera_strength |
number
|
1
Max: 2 |
How strongly the camera move is applied. Above ~1.2 the motion gets more literal at the cost of image quality.
|
| width |
integer
|
768
Min: 256 Max: 1536 |
None
|
| height |
integer
|
1280
Min: 256 Max: 1536 |
None
|
| duration |
number
|
4
Max: 20 |
Clip length in seconds. 0 = auto: follow the audio if one is given, otherwise let the model predict a length from the prompt.
|
| seed |
integer
|
-1
|
-1 = random
|
Output schema
The shape of the response you’ll get when you run this model with an API.
{'format': 'uri', 'title': 'Output', 'type': 'string'}