Brig
Brig is an open-source tool that runs coding agents inside microVM sandboxes. Its README describes each session as getting its own Linux kernel and selected project directory on the user's machine; the launch announcement also says it can run on Mac/Linux cloud hosts.
| Pricing model | No public pricing or billing model stated; Apache-2.0 open-source software |
|---|---|
| Pricing The headline compute price as the provider states it. Sorting ranks prices stated per vCPU over time, converted to hourly. Other pricing models sort after, unranked. | No public compute rate stated |
| Free while idle Whether a stopped, paused, or sleeping sandbox costs nothing. | – |
| Elastic Resources flex with what the sandbox actually uses, and the bill follows: yes when the provider bills on active or observed use, no when capacity is reserved or allocated and billed while it runs. | – |
| Memory snapshots Whether RAM state survives a pause and resume, not just disk. | – |
| Wake on request Whether a stopped sandbox wakes automatically on inbound traffic. | – |
| Start / resume Typical time from create or resume to running. Sorting ranks stated times, converted to seconds; claims with no figure sort after, unranked. | – |
| Max runtime The longest a sandbox may run. | – |
| Isolation The isolation technology between sandboxes. | macOS: hull microVM runtime, usually using hvi with Hypervisor.framework; vz/Virtualization.framework is another backend. Linux: nerdctl/containerd with the urunc shim, which boots a microVM. |
| GPUs Whether GPU instances are available for sandboxes. | ✕ |
| Docker Whether Docker containers can run inside the sandbox. | ✕ |
| SDKs | – |
✓ yes · ✕ no · – no cited public fact.
The public material describes Brig as software installed on local machines or cloud hosts, not as a managed hosted cloud service.
Sources
- https://github.com/brig-sh/brig/blob/main/README.md
- https://www.nofire.ai/newsroom/brig-open-source-launch
- https://github.com/brig-sh/brig/blob/main/docs/runtimes.md
- https://github.com/brig-sh/brig/blob/main/docs/cli.md
- https://github.com/brig-sh/brig/blob/main/docs/security.md
- https://github.com/brig-sh/brig/blob/main/docs/sessions.md
- https://raw.githubusercontent.com/brig-sh/brig/main/docs/non-goals.md
- https://raw.githubusercontent.com/brig-sh/brig/main/docs/runtimes.md
Last verified 2026-10-02. Corrections land through the update log.