Rift vs Mem0
Mem0 stores facts an agent has learned about a user. Rift syncs the files an agent works on.
Mem0
No files. Facts extracted from conversations, held on Mem0's servers or your own.
a whole project
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Rift
one folder, read
What Mem0 is
Mem0 is a memory service for agents. It extracts facts from conversations, stores them, and returns them by meaning through one search call. It is available as a hosted platform and as open-source software that you run yourself.
How they differ
Mem0 stores what an agent has learned about a user and returns it by search. Rift syncs files between machines.
Mem0Rift
IdentityMem0A Mem0 API key for one organization and project.RiftA key that each machine and agent makes for itself. No account.
Smallest shareMem0Membership of a project, or a project API key.RiftA folder, a subfolder or one file, as read or write.
Who checks accessMem0Mem0's servers, or your own server when you host it.RiftEach machine that receives a file checks the grant itself.
Who can read your filesMem0Mem0, on the hosted platform. You, when you host it.RiftOnly the machines you shared with. Rift Cloud holds ciphertext.
When your machines are offMem0Memories stay available from the hosted platform.RiftFiles stored in Rift Cloud stay available.
Which to choose
Choose Mem0 when
- Agents need to recall facts across sessions.
- You want search by meaning.
Choose Rift when
- The state is files, such as reports, datasets and video.
- The files have to be on the agent's own disk.
- A cloud should store the files and be unable to read them.
Using them together
An agent can keep facts in Mem0 and files in Rift.
Based on Mem0's documentation, read in October 2026. Sources: scoped memory, platform and open source, FAQ.