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Models & Architectures Glossary

Diffusion Model

A generative model that creates images by starting from noise and progressively removing it.

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Diffusion models learn to reverse a process that adds noise to images. At generation time they begin with random noise and denoise it step by step, guided by a text prompt, until an image appears. The same idea extends to video and audio. This approach underpins most modern text-to-image tools.

Related terms

Generative AI

AI that creates new content such as text, images, audio or video.

Multimodal AI

AI that understands and generates more than one type of data, such as text, images and audio together.

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