Glossary · Updated Sep 2, 2026

Agent memory

Mechanisms that let an assistant or agent remember facts, preferences, and history across sessions and tasks.

Definition

Memory ranges from short-term context within a conversation to long-term stores of user preferences, past decisions, and documents, retrieved when relevant. Products expose controls to view, edit, or delete memories, which matters for privacy. Effective memory makes assistants more personal and agents more consistent over long tasks.

Why it matters when choosing a tool

Memory features change how useful an assistant becomes over time, and how carefully you must manage what it retains.

Where you will meet it

AI Assistants, AI Agent & Chatbot Builders, AI Knowledge Management

Related terms

Context window · Retrieval-augmented generation (RAG) · Data residency and privacy

Tools where this matters

Reviewed products in the related categories