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Text embedding

AI concepts

A dense vector representation of text so that similar meaning tends to land near similar vectors—used for search, clustering, and RAG retrieval.

An embedding model maps text to a fixed-length vector. Distance (for example cosine) approximates semantic similarity for that model’s training distribution.

In engineering workflows

Embeddings power semantic search and many RAG pipelines, often stored in a vector database. Quality depends on domain fit and freshness of the embedded content.