An Illustrated Guide to AI Agents

Chapter 1. Introduction

A Note for Early Release Readers

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In 2024, AI Agents began reshaping the AI landscape as we knew it. Where ChatGPT, at the end of 2022, revolutionized the field of Large Language Models (LLMs), AI Agents took a major step further and were designed to act with autonomy, pursue goals, and even interact with the world. Rather than just generating text, these agents are capable of advanced reasoning, memorizing complex interactions, and creating entire codebases.

This shift is monumental and not just an incremental improvement. It redefines how we interact with AI. Where LLMs require significant hand-holding, AI Agents are capable of autonomously deciding which actions to take, when to take them, and even how. It is this agency that makes them such interesting entities and will be a core focus throughout this book.

With Coding Agents becoming a staple in every software developer’s toolkit, we have just begun to understand the potential this technology has. AI Agents, in various forms, are beginning to integrate ...