Materialize a runnable app the moment a user prompts.
Coding agents and app builders need a real computer per user: a filesystem, a shell, a dev server and a preview URL, ready in milliseconds and kept warm on standby. Blaxel gives each session its own sandbox that resumes in about 25 milliseconds when the user comes back.

Coding agents and AI app builders
[CAPABILITIES]
Everything a generated app needs to run
Full observability
Logs, traces, and metrics for every agent run, out of the box.
Resume in ~25ms
Suspended agents come back with memory, processes and files intact.
Hardware isolation
One microVM per agent. No shared kernel, no cross-tenant reach.
Persistent memory
In-memory snapshots, volumes and Agent Drive keep state between runs.
Network control
Allow-lists, static IPs and secret injection on every workload.
Preview URLs
Expose the dev server on a URL your users can open immediately.
[SUSPEND WITHOUT LOSING A BYTE]
No base subscription. Fully usage-based.
In-memory storage is built for speed, and roughly half of a sandbox's memory is reserved for it. When a workload needs more room than memory allows, or data that must outlive the sandbox itself, attach a volume. Volumes trade some speed for durable, redundant capacity.
[REPRESENTATIVE USAGE RATES]
Usage rates
Sandbox active CPU at $0.0000115 / GB RAM-second, snapshot storage at $0.20 / GB-month, images at $0.045 / GB-month.
[FAQ]
Frequently Asked Questions
- How fast does an agent resume after being idle?
- Sandboxes scale to zero after about 5 seconds of inactivity and resume from standby in roughly 25ms, even after weeks of being suspended.
- Does my agent keep its memory between runs?
- Yes. In-memory filesystem snapshots keep a suspended sandbox ready to resume. For guaranteed long-term persistence, attach a Volume or use Agent Drive, which can retain data for years.
- How isolated is each agent?
- Every agent runs in its own hardware-isolated microVM with full access to its filesystem, processes, and logs, plus native support for Zero Data Retention.
- How long can an agent run?
- Sandboxes are built for workloads lasting seconds to hours. For longer background work you can pair them with Batch API, which runs up to 24 hours.
- What does it cost to keep an agent on standby?
- You stop paying for compute while a sandbox is suspended. You only pay the standby snapshot storage rate to keep it ready for instant resume.