| #https://www.notion.so/n8n/Frontmatter-432c2b8dff1f43d4b1c8d20075510fe4 | |
| 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](/glossary.md#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](/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](/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorymotorhead.md) | |
| * [Redis Chat Memory](/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memoryredischat.md) | |
| * [Postgres Chat Memory](/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorypostgreschat.md) | |
| * [Xata](/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memoryxata.md) | |
| * [Zep](/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](/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorymanager.md) node. | |
| --8<-- "_snippets/integrations/builtin/cluster-nodes/langchain-sub-nodes/chat-memory-manager-purpose.md" | |