Keep every version.
Download any of them.
S3-compatible storage with built-in version history. Download any prior version by ID. $4.99/TB flat, no egress on reads.
No credit card required · No egress fees · Connects in minutes
A backup is not the exact prior state.
Scheduled backups capture moments in time, not the continuous history. Debugging a data-quality regression, reconstructing a prior model training state, or answering an audit request often requires a specific state between backups.
Backups are periodic. Bugs are not.
A nightly backup captures yesterday. If a data-quality issue was introduced at 2pm and discovered at 11pm, the prior-clean state is between two backup windows — and unavailable.
Reproducing the exact input requires the exact prior version.
A model trained on a dataset that was later modified cannot be reproduced without the exact version of the training data that was used. Version history makes that a one-line query.
Auditors ask for the specific record, not a backup.
Evidence requests for specific records at specific points in time require version history. A backup restore retrieves the whole snapshot — version download returns the specific object at the specific time.
Version history that costs what it stores.
Standard S3 versioning API. Versions billed at $4.99/TB like any stored object — no retrieval fee on any read.
S3 version history
Every PUT creates a new version. Prior versions are retained and downloadable by version ID using standard S3 GET. Configured when the bucket is created.
No egress on version reads
Downloading any prior version — for debugging, audit, or reconstruction — is included in flat storage. No egress charge per read.
Pairs with Object Lock
Combine versioning with Object Lock retention so versions can't be deleted or overwritten early, even by an admin key.
Flat cost across versions
Versions cost $4.99/TB like any stored object. The version history grows with the data; the rate per TB does not change.
Not a backup. The exact state.
Free 1 TB evaluation. Create a versioned bucket, write a few objects, and download a specific prior version in one call.
No credit card required · No egress fees · Connects in minutes