How we test prompts

Every prompt in this library was rendered on four seeds before it was published, and every image on the site is a straight render of the exact prompt printed next to it.

What a prompt has to do to get in

1. Render on four seeds. Library prompts run on seeds 11, 22, 33 and 44. The reference grids use seeds 1001 and 1002, and the Krea 2 camera grid uses 501 and 502.
2. Run on the free tile, at the free settings. Krea 2 prompts run on SirenRender’s free Quick Generate tile and Illustrious prompts on the free anime tile. That means the same model, steps, CFG and portrait size a visitor gets, with no paid upscale and no LoRAs added. The settings are listed on every prompt page.
3. Get looked at, frame by frame. We check every render for broken hands and faces, whether it shows what the prompt asks for, and whether the composition and light are worth copying. A prompt is published when at least three of its four seeds are good.
4. Show all four. The strip on each page always shows all four seeds, including the weakest. The circled frame is the one we liked best. Nothing is retouched; images are only resized for the web, and the sirenrender.com watermark is the one every free render carries.

Prompts from other people

The Tested from X section collects prompts that people shared publicly on X; each page shows the post’s likes and views when we checked. Each page names the author, links the original post, says which model it was written for, and lists every change we made before running it on Krea 2. The usual changes are removing Midjourney flags such as --ar and --sref, filling in template blanks, and rewording any “young” or “girl” to clearly adult wording such as “a woman in her twenties”. If one of these prompts is yours and you want the credit changed or the page taken down, use SirenRender’s content removal page or message @sirenrenderai on X.

Adults only

Every person shown in this library is an adult. Our own prompts say so outright (mature female, “a woman in her twenties”), any prompt from X that said “young”, “girl” or “teenage” was reworded with the change listed on its page, and we left out any prompt whose results could be read as someone under 18. SirenRender, where the “Run it free” buttons lead, is an 18+ platform.

Who makes this

The library is made by SirenRender, an AI image generator that runs Krea 2, WAI-Illustrious and other open models on its own GPUs. Built by professionals.