Ltx 2 19b
10 modes on this page
Ltx 2 19b turns a text prompt into a video clip. Pick a mode, write the prompt, run it in the studio.
Input
FormMode
Prompt*
Image URL*
Number of Frames
Video Size
Result
PreviewMotion preview, not Ltx 2 19b output
$0.0018 per megapixel·~90s
What Ltx 2 19b is for
Ltx 2 19b from Lightricks turns a written prompt into a short video clip. Runtime is about 90 seconds and compute is $0.0018 per megapixel. Modes on this page: Image to Video, Text to Video, Audio to Video, Video to Video, Extend Video, Audio to Video with LoRA, Text to Video with LoRA, Extend Video with LoRA, Image to Video with LoRA, and Video to Video with LoRA. It is a clip generator, not a full training-video editor.
Ltx 2 19b is cheap enough that a generation usually fits the free Knowlify plan's credits. A typical run is about 90 seconds. Published rate: Your request will cost $0.0018 per megapixel of generated video data (width × height × frames), rounded up. For example, if you generate a video that is 121 frames long at 1280 × 720, your total generated video is ≈112 MP, and your request will cost $0.2016.
Pick Ltx 2 19b for text to video at $0.0018 per megapixel and ~90s. Compare it with Ltx 2 19b Distilled, Ltx 2 3, Ltx 2.3 22b on the related cards below if you need a different look, speed, or input type.
How to use Ltx 2 19b
- 1. Upload the still Ltx 2 19b should start from, then write the change or motion in Input.
- 2. Run it. The prompt and file hand off to the Knowlify studio, where Ltx 2 19b generates.
- 3. Stay in the studio if you want that frame or clip inside a longer narrated video.
What you need
- A prompt that names the subject, camera move, and lighting.
- A source still (PNG or JPG) for the model to start from.
- Video Size (square_hd, square, portrait_4_3, portrait_16_9, and more).
- Optional toggles on this model, such as audio or quality flags.
Example prompt
a polar bear on pack ice, low sun, vast sky, dark studio product, one hard key, glossy, no text, no watermark, slow cinematic camera move, natural motion
Frequently asked questions
How do I run Ltx 2 19b?
Run Ltx 2 19b on Knowlify at /generate/ltx-2-19b. This page has 10 modes in one dropdown. Write the prompt on this page and it opens in the studio, where Ltx 2 19b generates a short clip. The same studio also turns documents into full narrated videos.
Where can I use Ltx 2 19b online?
On Knowlify (Lightricks's model, knowlify.com/generate/ltx-2-19b). You do not need a separate playground. Ltx 2 19b runs in the studio next to document-to-video.
Can I make a longer video with Ltx 2 19b?
Ltx 2 19b itself produces a short clip. On Knowlify you can take that output, or skip it and upload a document, and generate a full narrated video with a script you can edit.
What do I need to run Ltx 2 19b?
A prompt and a source still. Ltx 2 19b will not invent the starting frame for you on this mode.
How long does Ltx 2 19b take?
Plan on about 90 seconds for a typical run, then whatever queue time the studio has. Video models sit at the high end of that range.
Does Ltx 2 19b have more than one mode?
Yes. This page has 10 modes: Image to Video, Text to Video, Audio to Video, Video to Video, Extend Video, Audio to Video with LoRA, Text to Video with LoRA, Extend Video with LoRA, Image to Video with LoRA, and Video to Video with LoRA. Switch them in the Mode dropdown instead of opening a new URL.
What does LTX-2 19B cost?
Your request will cost $0.0018 per megapixel of generated video data (width × height × frames), rounded up. For example, if you generate a video that is 121 frames long at 1280 × 720, your total generated video is ≈112 MP, and your request will cost $0.2016. Knowlify charges this as credits, at the compute cost.
What is LTX-2 19B best for?
Generate video with audio from text using LTX-2. It turns a text prompt into a video clip.
Do I need an account to use LTX-2 19B?
Yes, a free account. The prompt you write here is waiting for you when LTX-2 19B opens in the studio.