What is Vector?

Explained

A vector is a list of numbers that represents data—e.g., text as an embedding. Similar content yields similar vectors; this enables semantic search and retrieval in RAG systems.

Further reading

• Vector Databases for RAG: Powering Semantic Search for LLMs

Related terms

• Embedding Dense numerical representation of text, image, or audio; enables semantic search.
• RAG Retrieve relevant documents and use them as context to generate the answer.
• Retrieval Search phase that fetches relevant documents or passages for a query.
• Semantic Search Search by meaning, not just exact words; uses embeddings.
• Agent Agenda The agent’s live plan: ordered steps, open subtasks, and checkpoints toward a goal.
• Agent Planner Component or prompt pattern that proposes multi-step plans before tools run.