E2B vs Vercel Sandbox
| E2B | Vercel Sandbox | |
|---|---|---|
| Isolation | Firecracker microVM | Firecracker microVM |
| Cold start | 150ms | 400ms |
| Price / vCPU-hr | $0.05 | $0.128 |
| GPU | No | No |
| Session limit | Up to 24h | 45min (Hobby) / 24h (Pro) |
| Persistence | Pause/resume with memory state, snapshots | Persistent by default |
| MCP support | n/a | n/a |
| Free tier | $100 one-time credit (Hobby) | Included allowance on Hobby |
| Best for | Teams that want the cleanest SDK and strong microVM isolation for agent code execution. | Teams already on Vercel building JS/TS AI apps. |
The verdict
Choose E2B for teams that want the cleanest SDK and strong microVM isolation for agent code execution. Choose Vercel Sandbox for teams already on Vercel building JS/TS AI apps.
Headline rates rarely equal your bill. Idle time, session length, creation fees and GPU minutes dominate. Model your actual workload in the cost calculator.
FAQ
E2B vs Vercel Sandbox: which is better?
It depends on your priority. E2B leads on both cold start (150ms vs 400ms) and the headline vCPU-hour price. E2B is best for teams that want the cleanest SDK and strong microVM isolation for agent code execution. Vercel Sandbox is best for teams already on Vercel building JS/TS AI apps.
Is E2B or Vercel Sandbox cheaper?
E2B is cheaper on the headline vCPU-hour rate ($0.05 vs $0.128). Total cost depends on idle time, session length and creation fees. Model your workload in the cost calculator.
Still choosing between E2B and Vercel Sandbox?
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