# Vercel Sandbox

Firecracker microVM sandboxes started through Vercel's SDKs and CLI, billed for active CPU time plus provisioned memory.

- Operated by: Vercel Inc.
- Status: Active [1]
- Website: https://vercel.com/sandbox
- Categories: Agent sandboxes
- Checked: 31 Oct 2026

## Vercel Sandbox (Agent sandboxes)

- Price: $0.128 /vCPU-h (+ $0.0212 per GB-hour)
- 1-hour session: ≥ $0.341 (2 vCPU / 4 GB · rank 26 of 26)
- Fleet month: ≥ $3,019 (50 × 8 h × 22 days)
- Billed on: Active CPU (increment unknown)
- Isolation: Firecracker microVM (sessions up to 24 h)

What to know:

- Active-CPU billing: Only CPU in use is billed, so idle time costs less; the light-use column shows how much.
- $20/mo plan: This price only applies on a plan of at least $20 a month.

### Plans

- Hobby: Free; 5 Active CPU hours, 420 GB-hours memory, 5,000 creations, 20 GB data transfer a month; 10 concurrent; 45-minute sessions; up to 4 vCPU / 8 GB; creation paused when the quota runs out [1]
- Pro: $20 /month; Platform fee with 1 deploying seat and $20 monthly usage credit; extra deploying seats $20/month each; 10,000 concurrent; 24-hour sessions; up to 8 vCPU / 16 GB [5]
- Enterprise: unknown (Custom pricing; contact sales); 10,000 concurrent; 24-hour sessions; up to 32 vCPU / 64 GB [1]

### Billing

- Payment: Metered: usage billed afterwards [1]
- Plan minimum: $20 a month [1]
- Billing increment: unknown (Not published; provisioned memory is billed in '1 minute minimum increments', Active CPU increment not stated) [1]
- Minimum charge: 60 s [1]
- Per-job fee: $0 per job [1]

### Runtime

- Billed on: Active CPU [1]
- Isolation: Firecracker microVM [1]
- Max session: 24 h [1]
- Concurrent sandboxes: 10,000 [1]
- Largest vCPU: 8 [1]
- Largest memory: 16 GB [1]

### Lifecycle

- Survives a stop: Disk [3]
- Snapshots: Yes [3]
- Pause and resume: Yes [3]
- Fork: Disk copy [3]
- Compute billed while stopped: No [3]
- Auto-stop: after 5 min [3]
- Start time (vendor claim): unknown (Docs say sandboxes start in 'milliseconds'; no figure published) [3]

### Capabilities

- GPU: No [4]
- Desktop: None [4]
- Coding agents installed: Claude Code, Codex, OpenCode, Pi [4]
- Agent prompt API: No [4]
- SSH: No [4]
- Docker inside: Yes [4]
- SDKs: TypeScript, Python, CLI, REST [4]
- SOC 2: Yes [4]

### Storage and network

- Disk included: 64 GB [1]
- Extra disk: Free [1]
- Snapshot storage: $0.08 per GB-month [1]
- Egress: unknown (Pro: Sandbox Data Transfer is 'Included in Flat Rate CDN' (1 TB a month on the included tier, paid tiers above); Enterprise $0.15/GB in iad1; downloads into the sandbox are free) [1]

### Platform

- Regions: arn1, bom1, cdg1, cle1, cpt1, dub1, fra1, gru1, hkg1, hnd1, iad1, icn1, kix1, lhr1, pdx1, sfo1, sin1, syd1, yul1 [2]
- Your cloud (BYOC): No [2]
- Self-host: No [2]

### Free allowance

- Minutes a month: unknown (Hobby's free quota is 5 Active CPU hours and 420 GB-hours of memory a month, not wall-clock sandbox minutes) [1]
- Credit a month: None [1]
- One-time credit: None [1]

### Prices

| Resource | Price | Per hour |
|---|---|---|
| per vCPU | $0.128 /h [1] | $0.128 |
| per GB of memory | $0.0212 /h [1] | $0.0212 |

- Active CPU counts only time the CPU is busy; waiting on I/O, network or model calls is not billed. Provisioned memory is billed for the whole time the sandbox runs, idle or not.
- Rates are for the default iad1 region; Active CPU, memory, data transfer and drive rates vary by region. Creations ($0.60 per 1M) and snapshot storage are the same in every region.
- Each vCPU comes with 2 GB of memory; 1 or an even number of vCPUs up to the plan maximum.
- Sandboxes are persistent by default; stopping one snapshots its filesystem (billed as snapshot storage) and the next call resumes it. Memory and processes are not kept.
- Drives (public beta) cost $0.05/GB-month, $0.0015/GB read and $0.004/GB written on Pro.
- Shell access is the CLI's `sandbox connect` (aliases `ssh`, `shell`); no SSH endpoint is documented.

## Sources

[1] https://vercel.com/docs/sandbox/pricing (checked 31 Oct 2026)
[2] https://vercel.com/docs/sandbox/concepts/regions (checked 31 Oct 2026)
[3] https://vercel.com/docs/sandbox/concepts/persistent-sandboxes (checked 31 Oct 2026)
[4] https://vercel.com/docs/sandbox/concepts (checked 31 Oct 2026)
[5] https://vercel.com/docs/plans/pro-plan (checked 31 Oct 2026)