Extend Directionisteğe bağlı
Direction to extend the video. 'forward' continues from the end of the video, 'backward' generates a new beginning.
Number of Framesisteğe bağlı
The number of frames to generate for the extension segment, including num_context_frames of overlap with the source video. The new content adds approximately (num_frames - num_context_frames) / frames_per_second seconds. The stable generation budget caps the resolution x frames volume: at 24 fps roughly 20s at 480p-class, 11s at 720p-class and 5s at 1080p-class; a request above the budget returns a 422 (lower num_frames or use a smaller resolution).
Number of Context Framesisteğe bağlı
The number of source frames used as context/overlap for the extension. Snapped down to the LTX temporal grid (8k+1) and clamped to the frames available in the source video.
End Image URListeğe bağlı
Optional keyframe image for the far end of the extension: the final frame for forward extension, or the new first frame for backward extension.
End Image Strengthisteğe bağlı
Conditioning strength of the optional end keyframe. 1.0 = exact match, lower = more freedom for the model.
Resolutionisteğe bağlı
The size of the generated video. 'auto' follows the source video size/aspect up to the LTX limits; the source is scaled to the final size in the stitched output. Sizes are 32px-aligned (e.g. 1920x1080 is delivered as 1888x1056). Higher resolutions reduce the maximum stable extension length; lower resolutions can run longer.
Match Input FPSisteğe bağlı
When enabled, the output FPS matches the source video's FPS (rounded to an integer and clamped to the supported range) instead of frames_per_second.
FPSisteğe bağlı
Frames per second of the generated video.
Video Strengthisteğe bağlı
Conditioning strength of the source context frames. 1.0 keeps the overlap locked to the source for a seamless transition; lower values give the model more freedom.
Number of Inference Stepsisteğe bağlı
Number of inference steps. Defaults to 15 and can be increased up to 30.
Guidance Scaleisteğe bağlı
Classifier-free guidance scale. The default is tuned for fast, high-quality generation.
Generate Audioisteğe bağlı
Whether to generate new audio for the extension segment (crossfaded with the source audio at the seam). When disabled, the source video's own audio track is preserved and the extension stays silent.
Negative Promptisteğe bağlı
The negative prompt to steer generation away from.
Seedisteğe bağlı
Random seed for reproducibility. If None, a random seed is chosen.
Enable Prompt Expansionisteğe bağlı
Whether to enable prompt expansion.
Enable Safety Checkeristeğe bağlı
Whether to enable the safety checker.
Video Qualityisteğe bağlı
The quality preset of the generated video.
Video Write Modeisteğe bağlı
The write mode of the generated video.
