What changed
The README's Maximum Duration section said:
You can select timeouts ranging from 5 minutes to 5 hours.
This template page copy (rendered on both the Coding Agent and Coding Agent Platform template pages) predates the platform's duration increase. Vercel Sandbox now supports sessions up to 24 hours on Pro and Enterprise plans (changelog, June 16, 2026) and 45 minutes on Hobby.
New wording keeps the description of the app's picker accurate (its options do top out at 5 hours / 300 minutes, see components/task-form.tsx) while no longer implying 5 hours is the platform maximum:
The picker offers timeouts ranging from 5 minutes to 5 hours. Vercel Sandbox itself supports sessions of up to 45 minutes on the Hobby plan and up to 24 hours on Pro and Enterprise plans.
Not changed (flagging for owners)
The duration SelectItem lists in five components still cap at 300 (5 hours). Extending the picker to offer longer durations is a functional change I didn't want to bundle into a copy fix — happy to follow up if you want the picker to expose the new ceiling.
You must have Developer access to commit code to Vercel Labs on Vercel. If you contact an administrator and receive Developer access, commit again to see your changes.
Learn more: https://vercel.com/docs/accounts/team-members-and-roles/access-roles#team-level-roles