PromptHero

PromptHero is a large searchable database of prompts used to generate AI art. Users can browse millions of AI-generated images, click through to see the exact prompt and settings — model, sampler, guidance scale — that produced each one, and reuse or adapt that prompt for their own generations. Content covers major image models including Stable Diffusion, Midjourney, and DALL-E, along with newer AI video tools. The site is built around search and filtering rather than generation itself: it functions more like an idea and reference library than an image generator, letting creators skip trial-and-error by starting from prompts that already worked for someone else. It is aimed at digital artists, hobbyists, and anyone doing prompt engineering for image generation who wants inspiration or a starting template rather than a blank page. Beyond the prompt archive, PromptHero also runs an Academy with courses on prompt engineering technique, and the community has published open-source fine-tuned Stable Diffusion models, such as the Openjourney checkpoint, that are hosted on Hugging Face and Replicate. Because the value of the site depends on user-submitted content, prompt quality and organization can vary, and the platform does not generate images on its own — it is a discovery layer that sits on top of other AI art tools.