---
title: "AI Agent Memory Explained in 3 Levels of Difficulty"
date: 2026-04-21
source: https://machinelearningmastery.com/ai-agent-memory-explained-in-3-levels-of-difficulty/
description: "A stateless AI agent has no memory of previous calls."
---

# AI Agent Memory Explained in 3 Levels of Difficulty

A stateless AI agent has no memory of previous calls.

*Published: 2026-04-21*