Render Removes 30-Day Limit on AI Sandboxes, Adds State-Preserving Durable Workflows
Render has lifted the 30-day continuous runtime cap on its paid AI sandboxes, introducing durable workflows that preserve files, memory, and processes across suspensions to support long-running agents.
Cloud infrastructure provider Render announced on November 4, 2026, that it has removed the previous 30-day continuous runtime limit on AI sandboxes within its paid workspace plans. This update allows Render's environments to run indefinitely, suspending when idle and resuming upon new commands while keeping files, memory, and running processes intact.
The launch also introduces "Durable Workflows," enabling developers to write long-running jobs in Python or TypeScript. If a process crashes, the workflow can resume on a new machine using saved step results, ensuring that successful model calls, payments, and database writes are not repeated. Additionally, new Shared Filesystems allow sandboxes and workflow tasks to access the same persistent files.
Render founder and CEO Anurag Goel stated that the design aims to differentiate from competitors like Vercel. According to The New Stack, Vercel currently caps uninterrupted individual sandbox sessions at 24 hours, and restarting them causes running processes to begin anew. Goel noted that maintaining state continuity is critical for long-duration agent tasks such as multi-day codebase migrations or full application testing.
Despite the new features, some capabilities remain in early stages. Credential brokering is initially available only to selected customers, private networking for sandboxes is still under development, and the mechanism for handling concurrent writes to the same file has not yet been finalized. Vercel had not provided a statement by the time of publication.