Leffa
Leffa edits an image you upload. Pick a mode, write the prompt, run it in the studio.
Input
FormHuman Image Url*
Garment Type
Garment Image Url*
Result
Preview
Illustrative preview, not Leffa output
Credits·~10s
What Leffa is for
Leffa starts from a still you upload, then edits it from your prompt. A typical run takes about 10 seconds at Credits. Use it when you already have a frame and need a new version, not a picture from scratch.
Leffa is cheap enough that a generation usually fits the free Knowlify plan's credits. A typical run is about 10 seconds.
Pick Leffa for image editing at Credits and ~10s. Compare it with Ai Avatar, Argil Avatar on the related cards below if you need a different look, speed, or input type.
How to use Leffa
- 1. Upload the still Leffa 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 Leffa generates.
- 3. Stay in the studio if you want that frame or clip inside a longer narrated video.
What you need
- A source still (PNG or JPG) for the model to start from.
- Garment Type (upper_body, lower_body, dresses).
Example prompt
a violin on fire on a dark stage, the player unharmed, night street photography, neon, rain, grain, no text, no watermark
Frequently asked questions
How do I run Leffa?
Run Leffa on Knowlify at /generate/leffa. Write the prompt on this page and it opens in the studio, where Leffa generates a still image. The same studio also turns documents into full narrated videos.
Where can I use Leffa online?
On Knowlify (knowlify.com/generate/leffa). You do not need a separate playground. Leffa runs in the studio next to document-to-video.
Can I make a longer video with Leffa?
Leffa itself produces a still image. 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 Leffa?
A prompt and a source still. Leffa will not invent the starting frame for you on this mode.
How long does Leffa take?
Plan on about 10 seconds for a typical run, then whatever queue time the studio has. Video models sit at the high end of that range.
What does Leffa Virtual TryOn cost?
Knowlify charges this as credits, at the compute cost.
What is Leffa Virtual TryOn best for?
Leffa Virtual TryOn is a high quality image based Try-On endpoint which can be used for commercial try on. It edits an image you upload.
Do I need an account to use Leffa Virtual TryOn?
Yes. Leffa Virtual TryOn runs in the Knowlify studio, which needs a free account. Anything you type on this page comes with you.