Embeddings Explained: The Secret Language AI Uses to Understand the World

If you've ever wondered how ChatGPT "knows" that king and queen are related, or how Spotify recommends songs you actually like, the answer is almost always the same: embeddings . This post breaks down what embeddings are, how they work, where they're used, and what you can actually do with them — no PhD required. 1. What Are Embeddings? At their core, embeddings are just numbers — more specifically, a list of numbers (a vector) that represents something like a word, a sentence, an image, or even