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What is an Agent Memory?

Definition

Agent Memory

Agent Memory refers to persistent memory architectures—combining short-term context buffers, episodic event logs, and long-term vector storage—that allow autonomous AI agents to retain context, remember past user interactions, and recall tools across multiple execution turns.

Detailed Deep Dive

Agent Memory provides the stateful backbone for autonomous systems. While standard LLM APIs are stateless by default, agent memory frameworks maintain working memory, episodic memory, and long-term semantic memory. This multi-tier memory stack enables AI agents to maintain continuity and perform complex tasks spanning days or weeks.

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Frequently Asked Questions

Q:What are the main types of agent memory?

Agent memory typically includes working memory (current context window), short-term episodic memory (recent execution steps), and long-term semantic memory (vector database of historical facts).

Q:Why is long-term memory critical for autonomous agents?

Without long-term memory, an agent resets its state at the end of every session, losing historical user preferences, system configurations, and past bug resolution patterns.

Quick Facts

  • CategoryAgentic Systems
  • Key ApplicationLong-running AI agents, personalized copilots, and multi-session software automation

Coverage Trend12 Weeks

12w agoToday

Cite This Term

Reference this definition in your articles, research, or documentation to credit this source:

[Agent Memory | SPIDITS Glossary](https://spidits.com/ai-glossary/agent-memory)

Agent Memory Media Coverage & Intelligence

arXiv AIAug 21, 2026

Beyond Memory Majority: Latent-Source Reasoning for Multi-Agent Memory Arbitration

Long-term multi-agent system continuously accumulate the memories produced by different agents. Existing memory methods typically treat retrieved memories...

PRODUCT LAUNCHAug 6, 2026

How Redis Brings Persistent Memory to Snowflake Cortex Agents

AI agent can reason and act, but without memory, every interaction starts from zero. Intelligent short-term memory and persistent context across conversations are what turns a capable model into a truly useful agent.

PRODUCT LAUNCHAug 3, 2026

Asana's AI Agents Share Memory Across Your Company - but Not Your Secrets

Enterprise teams building AI agent keep hitting the same wall: a chatbot that can answer a prompt but can't remember what the last five people asked it, and.

FUNDINGJul 27, 2026

Yugabyte Targets the Missing Memory and Knowledge Layer for Enterprise AI Agents

Enterprise investment in agentic artificial intelligence is accelerating, but the infrastructure supporting those systems is still catching up. Organizations are moving agents into customer support, software development, sales operations and other production workflows.

Redis BlogJul 1, 2026

Build AI agents with short-term & long-term memory in Redis

AI agent memory is the system that lets an agent store, retrieve, and reuse information across interactions instead of starting over on every request. Getting there is one of the trickier parts of building AI agent. Large language models (LLM) are s...

SiliconANGLEJun 30, 2026

Couchbase's AI Data Plane aims to turn fragmented data into real enterprise agent memory

Couchbase Inc. is trying to solve one of the hardest problems in enterprise artificial intelligence today: turning brittle, chat-style pilots into production-grade agents capable of remembering, reasoning and acting on live operational data. With the launch of its AI Data Plane, the company is...

Redis BlogJun 17, 2026

Why a bigger context window won't fix your agent's memory

Context window have grown fast. Models that once capped out at a few thousand token now advertise hundreds of thousands, and the natural assumption was that the agent memory problem would shrink as the window grew. Stuff more into the prompt, the th...

Redis BlogJun 17, 2026

FAQ: Real-time context engine, agent memory, and retrieval

AI agent are getting better at reasoning, planning, and using tools. But even the smartest model can give a bad answer if it has the wrong context, stale data, or too much irrelevant information. That is why context engineering is becoming a critica...