ToolsJanuary 30, 2026via Vercel Blog
Run untrusted code with Vercel Sandbox, now generally available
Why it matters
AI agents need fundamentally different infrastructure than human developers. Vercel's GA launch of Sandbox—purpose-built for ephemeral, isolated, untrusted code execution—removes a critical blocker for agent-native software workflows and shifts how infrastructure vendors compete for agent workloads.
Key signals
- Vercel Sandbox now generally available
- Infrastructure spans 2.7M deployments/day at production scale
- Sub-second cold starts for sandbox environments
- Full isolation + sudo access + package managers for untrusted code
- Ephemeral design with Active CPU pricing (pay for execution, not idle)
- Open-sourced CLI and SDK for community adoption
- Early adopters: Roo Code (multi-platform AI coding agents), Snapshots (environment restoration), Blackbox AI (multi-agent orchestration platform with horizontal scaling)
- Powered by Firecracker microVMs orchestrated across multi-region clusters (internal 'Hive' platform)
The hook
Not a pilot. Vercel Sandbox now runs AI agents at scale—2.7M deployments/day infrastructure, open-sourced, sub-second cold starts.
AI agents are changing how software gets built. They clone repos, install dependencies, run tests, and iterate in seconds.
Despite the change in software, most infrastructure was built for humans, not agents.
Traditional compute assumes someone is in the loop, with minutes to provision and configure…