AI 101

Long-term memory

Also known as: persistent memory

Agents

Long-term memory is what an agent retains across sessions: persistent, retrievable memories of facts, decisions, and outcomes.

  • Survives restarts and new conversations.
  • Usually embeddings + a database (vector or key–value).
  • Lets an agent build on past work instead of starting cold.

The value: an agent with long-term memory is a *continuity* — it remembers your conventions, your decisions, your mistakes. That's what makes it feel like a collaborator rather than a chatbot.