Sandbox0
Persistent cloud sandboxes for AI agents that pause between tasks.
- AI tool
- Free trial
Pricing
$0.015 per GiB-hour of compute (billed by the second) and $0.02 per GiB-month of retained storage; $5 free credit, no card needed.
Overview
Sandbox0 is a hosted service that gives each user's AI agent an isolated cloud computer whose whole filesystem persists. Agents can install software and write anywhere, and the disk grows as it fills. Compute can be paused between tasks so you stop paying for it, then resumed in the same environment, and files can be read or edited while paused. Agents such as Codex, Claude Code or Cursor drive it through the s0 command-line tool, and there is a Python SDK. An earlier open-source release is archived on GitHub under the Apache-2.0 license; current development is closed source.
Key features
- Whole filesystem kept across pauses
- Pause compute, resume later
- File access while paused
- s0 CLI and Python SDK
- gVisor isolation
Use cases
Alternatives
Last updated 2026-10-23