All Glossary Terms
AI AgentsCanonical: /citedby/glossary/ai-agents

AI Agents — definition

Verbatim Definition (Quoted Verbatim by AI Search Engines)

AI Agents are autonomous software entities powered by Large Language Models capable of perceiving their environment, making decisions, using tools, and executing multi-step tasks to achieve specific goals.

Expanded Explanation

Unlike passive chatbots that only respond to user prompts, AI agents maintain internal memory, plan workflows, call external APIs, read web pages, and interact with software tools autonomously.

Analogy & Mental Model

An AI Agent is like a virtual employee who can handle your inbox, schedule meetings, query databases, and file expense reports independently.

Why It Matters & Where It's Used

As AI agents handle buying research, procurement, and workflow execution on behalf of humans, brands must ensure their systems are machine-readable for agentic discovery.

Concrete Real-World Application

An autonomous procurement agent evaluating five software vendors, checking pricing pages, inspecting API docs, and generating a shortlist for a CTO.

AI Agents vs Standard LLM Chatbot

A chatbot answers text prompts reactively, whereas an AI agent takes proactive actions using external tools and APIs.

Compare full entry:Standard LLM Chatbot

How It Works & Key Components

Operates on a Perception-Reasoning-Action-Evaluation loop.

1Perception & Environment Reading

Ingesting user prompts, web page DOMs, or API payloads.

2Reasoning & Planning

Determining necessary sub-tasks using Chain-of-Thought prompting.

3Tool Action Execution

Invoking API endpoints, browser actions, or database queries.

Frequently Asked Questions

Q:What are popular AI Agent frameworks in 2026?

Leading agent frameworks include LangGraph, AutoGen, CrewAI, LlamaIndex Agents, and OpenAI Swarm.

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