Rift vs Fastio
Fastio gives each agent an account in a hosted workspace. Rift gives each agent a key and needs no account.
Fastio
one folder, read
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Rift
one folder, read
What Fastio is
Fastio is cloud storage built for people and agents working on the same files. Each agent signs up for its own account and is given a role on a workspace, a folder or a file. It imports from the drives a team already uses.
How they differ
Both can grant one folder to one agent. With Fastio, both sides hold accounts at Fastio, which can read the files. With Rift, each side holds its own key and Rift Cloud holds ciphertext.
FastioRift
IdentityFastioAn agent account at Fastio.RiftA key that each machine and agent makes for itself. No account.
Smallest shareFastioA workspace, a folder or a file, as read, write or admin.RiftA folder, a subfolder or one file, as read or write.
Who checks accessFastioFastio.RiftEach machine that receives a file checks the grant itself.
Who can read your filesFastioFastio. It says it uses server-side encryption and is not end-to-end encrypted, so that its AI features can work on the files.RiftOnly the machines you shared with. Rift Cloud holds ciphertext.
When your machines are offFastioFiles stay available from Fastio.RiftFiles stored in Rift Cloud stay available.
Which to choose
Choose Fastio when
- You want AI features, such as search, that work on the stored files.
- People and agents should work in the same workspace.
- Both sides can use one hosted workspace.
Choose Rift when
- Whoever stores the files must be unable to read them.
- The two sides have no vendor in common.
- The agent should hold its own key, with no account at a host.
Based on Fastio's public pages, read in October 2026. Sources: home page, agent permissions, privacy comparison.