Text-to-Image Diffusion

You type a description; the system makes a picture. Behind the scenes it doesn't paint pixels straight away. It first turns your words into 'meaning numbers', then starts from a field of pure static and, step by step, cleans the static up until a picture matching your words emerges. A final step blows that compact sketch up into a full image, and a safety check looks at it before you see it. The 'brain' doing the cleanup was downloaded as a big file from a public model hub.