A neural network is a computing model made of many connected nodes. It is loosely inspired by the brain and underpins almost all modern AI.
Illustration: AI-generated · AI Compare Ninja · CC BY 4.0
Example
A neural network looks at a photo and outputs: “97% likely a cat.”
For pros
Each connection has a weight that is adjusted during training. Deep networks with many layers are called deep learning. Language models mostly use the transformer architecture with attention.