Vercel Sandbox supports dynamic extension of runtime duration

You can now extend the duration of a running Vercel Sandbox using the new extendTimeout method.

This lets long-running sandboxes stay active beyond their initial timeout, making it easier to support workflows like chained agentic tasks or multi-step code generation that take longer than expected.

You can extend the timeout multiple times until the maximum runtime for your plan is reached.

Pro and Enterprise plans support up to 5 hours, with the Hobby plan supporting up to 45 minutes.

Get started with Sandbox now and learn more in the docs.