Mem0

What Mem0 is

Mem0 is a memory layer for large language model applications. It saves, filters and retrieves historical context so assistants, agents and recommendation systems can remember relevant information instead of resending everything each time.

It offers both a fully managed service and open source self-hosting, and works with major model providers.

What you can do with it

• Store and retrieve long-term conversation context
• Filter what gets sent back to the model
• Self-host or use the managed service
• Personalise responses across sessions

Who it is for

• Developers building agents and assistants
• Product teams needing continuity
• Teams watching model call cost

What to watch out for

• Stored memory is user data: decide retention, access and deletion before launch
• The cost reduction figure on the site is a vendor claim; measure on your own traffic
• Wrong or stale memories produce confident errors
• Self-hosting adds operational work