lightricks/ltx-2-fast

Ideal for rapid ideation and mobile workflows. Perfect for creators who need instant feedback, real-time previews, or high-throughput content.

Capabilities

Reference Images

Community model (estimated from hardware time)

Name	Type	Description	Default	Constraints
`prompt`*	string	Text prompt describing the video to generate	`—`	—
`duration`	integer	Duration of the video in seconds. Durations longer than 10 seconds are only available with 1080p resolution.	`6`	68101214161820
`generate_audio`	boolean	Generate audio for the video. Used for text_to_video and image_to_video tasks.	`true`	—
`image`	string(uri)	First frame image for image-to-video generation	`—`	—
`resolution`	string	Resolution quality of the generated video	`"1080p"`	1080p2k4k

promptrequiredstring

Text prompt describing the video to generate

durationinteger

Duration of the video in seconds. Durations longer than 10 seconds are only available with 1080p resolution.

Default: 6

68101214161820

generate_audioboolean

Generate audio for the video. Used for text_to_video and image_to_video tasks.

Default: true

imagestring

First frame image for image-to-video generation

resolutionstring

Resolution quality of the generated video

Default: "1080p"

1080p2k4k

Version: 648be07d527dUpdated: 7/25/202680.4K runs