Attach storage to a sandbox so that an agent's context survives across the lifecycle of one or multiple sessions. State is persistent by design, so an agent can remember what it did and pick up across sessions without you building a state layer around it.
When a sandbox scales to zero, Blaxel snapshots its full filesystem & memory to warm storage, so it resumes from standby in ~25ms with exact state intact, even after weeks idle. When you need data to outlive the sandbox itself, you move to durable volumes or a shared drive.
Three building blocks cover the full range, from instant in-session memory to long-term retention to real-time sharing across agents.
01/IN-SESSION MEMORY
An in-memory filesystem with snapshots kept forever until you delete them. Full filesystem and memory state is captured at scale-down and restored on resume, so a sandbox comes back exactly where it left off and running processes continue. Best for fast, in-session working memory.
02/LONG-TERM DURABLE
Durable mounts that retain data for years on a redundant backend. A volume is block storage attached to a sandbox at creation, and it survives sandbox destruction and recreation, so it is the cost-effective way to persist files from weeks to years. Best for long-term retention and large codebases.
03/SHARED MEMORY LAYER
A distributed filesystem for real-time, multi-agent collaboration. A drive mounts into multiple sandboxes or agents at once, including while they are already running, with concurrent read-write access and built-in replication for durability. Best for many agents working on the same files.
[DECISION MATRIX]
01/In-session memory
02/Long-term durable
03/Shared memory layer
No base subscription. Storage is fully usage-based, and you start with up to $200 in free credits, no credit card required.
$0.20/ GB-MONTH
Memory and filesystem snapshots that keep suspended sandboxes ready for about 25ms resume.
$0.12/ GB-MONTH
Durable, long-term storage billed on the size you provision, scaling up to 512 TB.
Free during preview
A shared filesystem that many sandboxes and agents mount at once, with concurrent read-write access.
$0.045/ GB-MONTH
Templated deployment images stored for fast, repeatable environment creation.
You only pay for what you store. Suspended sandboxes stop billing compute and are charged at the snapshot storage rate to stay resume-ready. All sizes are binary gigabytes (GiB), where 1 GB = 2^30 bytes.
