Stable Diffusion negative prompt library
A negative prompt is the fastest way to clean up Stable Diffusion output. This library bundles curated, deduplicated negative-prompt presets for the most common image types — portraits, landscapes, anime and photorealism — plus a Universal quality set. Toggle the presets that match your scene, add any extra tokens, and copy a tidy negative prompt.
How negative prompts steer the model
During sampling, Stable Diffusion contrasts your positive prompt against the
negative prompt and pushes the image away from the negative concepts. That is
why extra fingers, deformed hands reliably reduces mangled hands, and why
blurry, low quality, jpeg artifacts sharpens output.
More is not always better. Each token competes for the model’s attention, so an overstuffed negative prompt can flatten contrast and strip detail. The reliable pattern is:
- Start with a small Universal set.
- Generate.
- Add only the tokens that target a problem you can actually see.
Tips for using these presets
- Match the preset to the medium. Use Anime negatives on anime checkpoints and Photorealism negatives on realistic ones — mixing them can cancel out.
- Hands and faces first.
bad hands, extra fingers, deformed facefix the artifacts users notice most. - Trim on SDXL. If output looks dull, remove half the list and re-test.
- Pair with a positive prompt. A strong negative prompt only shines next to a well-ordered positive prompt and matching quality boosters.