AI Agent vs Agentic AI
An AI agent is a single autonomous program that perceives input, decides, and acts on a goal using a language model plus tools.
Read definition →Reference · Updated June 10, 2026
AI Agent Glossary
The AI agent vocabulary, defined in plain English. Every term opens with a 40–60 word answer, then explains where the line really falls — with examples drawn from the real agents we index, not abstractions. Built for people who want the distinction, not the hype.
Foundations
Looking for products instead of definitions? See the full index of AI agents or the head-to-head comparisons.