Summary
On October 15, 2026, Vercel Drives became generally available on Hobby, Pro, and Enterprise plans. A Drive mounts as a directory in a Vercel Sandbox and persists files after the sandbox stops, and Drives can be forked into independent writable copies so parallel workers start from the same data without interfering.
What changed
Vercel Drives hit GA for Vercel Sandbox, providing persistent storage mounted as a directory whose files outlive the sandbox and can be re-mounted by later runs or other sandboxes. Drives can be forked into independent writable copies that inherit the source Drive's data, region, and maximum size, with each fork storing its own changes.
Why it matters
Persistent, forkable storage gives sandboxed agents and build workers durable state and cheap branching, enabling parallel agent runs and reproducible environments without rebuilding from scratch, a key primitive for scaling agentic coding and CI on Vercel Sandbox.
Evidence excerpt
Files outlive the sandbox. A Drive can be forked for parallel workers, and forks inherit the source Drive's data, region, and maximum size.