negative prompts
stable diffusion
AI image generation
SDXL
Flux
prompting guide
AI art
Negative Prompts Explained: What They Are, How They Work, and the Best Ones to Use (2026)
Learn what negative prompts are, how they work with Stable Diffusion, SDXL, SD 3.5 and Flux, plus copy-paste prompt lists for portraits, landscapes, anime and more.
19 Feb 2026