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# VM instances and images for SaaS runners on macOS **(FREE SAAS)**
When you use SaaS runners on macOS:
- Each of your jobs runs in a newly provisioned VM, which is dedicated to the specific job.
- The VM is active only for the duration of the job and immediately deleted.
## VM types
The virtual machine where your job runs has `sudo` access with no password.
- Additional details on the support policy and image update release process are documented
[in this project](https://gitlab.com/gitlab-org/ci-cd/shared-runners/images/macstadium/orka/-/blob/55bf59c8fa88712960afff2bf6ecc5daa879a8f5/docs/overview.md#os-images).