Is my prompt or image sent to a server?
No. The model runs in your browser, so your prompts, seeds and images stay on your device. The only download is the model itself, once, from huggingface.co.
Why does the tool download something the first time?
The model weights have to be on your machine to render. They're fetched once, kept in your browser's cache and reused next time. If the download stops, it picks up where it left off.
How big is the download and where is it stored?
Draft is about 0.9 GB, Standard about 2.2 GB and Best about 6.7 GB. They are kept in your browser's storage for this site. The model panel shows what's there and lets you delete it.
Does it work offline after the download?
Yes. Once a model is cached, generating needs no network. You only need to be able to open this page.
Why is it slower on my laptop?
It depends on your GPU. Draft makes a 512-pixel image in well under a second on a recent Apple or dedicated GPU, and in a few seconds on the CPU. Safari and browsers without WebGPU use the CPU.
Can I use the images commercially?
It depends on the model's license, shown in the model panel. Draft (SDXS-512-DreamShaper) uses CreativeML OpenRAIL++-M, Standard (LCM Dreamshaper v7) uses MIT and Best (FLUX.2 [klein] 4B) uses Apache 2.0. We add no restrictions and keep no copy.
What is the Best model?
Best is FLUX.2 [klein] 4B from Black Forest Labs, a much larger and newer model than Draft and Standard. It makes images of about one megapixel in 4 steps and can edit a picture you add: describe the change and it keeps the rest. It needs a desktop GPU with 16-bit shaders and about 8 GB of memory, and takes a minute or two per image. It is marked experimental until it has been checked on more hardware.
Are the images filtered?
No. Nothing is checked or blocked. The model runs unfiltered on your device, and what you make with it is your responsibility under the model's license.
Why do tall or wide images sometimes repeat the subject?
Draft renders in one step and was trained on square images, so it only offers ratios we checked stay coherent. Standard takes more steps and handles portrait and landscape better.
Will the same seed give the same image on another computer?
On the same device and browser, yes. Another GPU or browser can round the maths a little differently, so the image may change slightly, or noticeably with a one-step model.
How do I delete the model and free the space?
Open the model panel and choose Delete from device. Clearing this site's data in your browser removes it too, along with your local library.