---
title: What's memory in AI?
description: Understand memory in the context of AI. Learn what's special about memory in n8n.
contentType: explanation
---

# What's memory in AI?

Memory is a key part of AI chat services. The [memory](/08-0-0-Workflow/glossary.rst#ai-memory) keeps a history of previous messages, allowing for an ongoing conversation with the AI, rather than every interaction starting fresh.

## AI memory in n8n

To add memory to your AI workflow you can use either:

* [Simple Memory](/08-0-0-Workflow/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorybufferwindow/index.md): stores a customizable length of chat history for the current session. This is the easiest to get started with.
* One of the memory services that n8n provides nodes for. These include:
	* [Motorhead](/08-0-0-Workflow/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorymotorhead.md)
	* [Redis Chat Memory](/08-0-0-Workflow/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memoryredischat.md)
	* [Postgres Chat Memory](/08-0-0-Workflow/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorypostgreschat.md) 
	* [Xata](/08-0-0-Workflow/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memoryxata.md)
	* [Zep](/08-0-0-Workflow/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memoryzep.md)

If you need to do advanced AI memory management in your workflows, use the [Chat Memory Manager](/08-0-0-Workflow/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorymanager.md) node. 

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