Compare · Agent sandboxes · verified 17 Oct 2026

Vercel Sandbox vs E2B

Both are Firecracker microVM sandboxes with an SDK. Vercel publishes its own Vercel Sandbox vs E2B guide, first published 20 March 2026.

Facts checked 17 October 2026. Prices and limits move. Read the citations.

Start a TaskAll comparison pages
Vendor agentDevin · Cursor · Copilot · Julessame jobRushYour harness, isolated, one PR
Isolated sandbox rooms, one per run

Neither product is ours. Rush is, and it gets one paragraph below. Every cell is from the vendor's own pages.

The short answer

Pick Vercel Sandbox for Active CPU billing, 19 regions and Vercel integration. Pick E2B for pause with memory, BYOC and an open-source runtime.

Read this first

The useful distinction

Vercel Sandbox: an SDK, CLI and API for on-demand Firecracker microVMs that run untrusted or agent-generated code. You bring the agent and the workflow. Generally available since 30 January 2026.

E2B: Firecracker microVM sandboxes driven from an SDK. Your agent runs code there; the loop, the git steps and the pull request are your code. Rush itself runs on E2B.

Head to head

Buyer questions

QuestionVercel SandboxE2B
What runsNone built in. The default image includes Node.js, Python and coding agents; you start and drive them.None built in. You bring the agent; E2B ships a prebuilt claude template and guides for Codex and OpenCode.
IsolationFirecracker microVM with its own filesystem and network. Sandboxes save state on stop by default. Sessions run 45 minutes on Hobby and 24 hours on Pro; default timeout is 5 minutes.Firecracker microVMs with dedicated kernels. A paused sandbox keeps its filesystem and memory, with no automatic deletion.
Result and pull requestLeft to you. You get exec, files and logs; the pull request is your code.Left to you. E2B's Claude Code guide clones with your token, runs the agent and reads git diff; pushing and opening the pull request is your code.
MCPVercel's remote MCP server has tools to create sandboxes, run commands, read and write files and set network policy.An MCP gateway inside the sandbox reaches 200+ servers from Docker's catalog, or servers you run yourself.
TeamScoped to a Vercel team and project, with OIDC auth and a dashboard to manage sandboxes.An SDK for your own product. No shared task view or Slack and Linear surface on the pages we read.
Starting priceHobby free with 5 Active CPU hours / month; Pro draws from the $20 / month creditHobby $0 with a one-time $100 credit; Pro $150 / month plus usage
Where it taps out5-minute default timeout. 24-hour session cap on Pro, 45 minutes on Hobby. A Pro sandbox tops out at 8 vCPU and 16 GB. Hobby creation pauses once quota is used.Sessions end at 1 hour on Hobby and 24 hours on Pro unless paused. Sandboxes reach the open internet by default. No result or pull request layer. Pro has a $150 monthly fee before usage.

Decision

When each side wins

Vercel Sandbox wins when

  • You want Active CPU billing: time waiting on I/O and model calls is not charged.
  • You need 19 regions, static egress IPs and VPC peering through Secure Compute.
  • You want up to 10,000 concurrent sandboxes on Pro and custom OCI images.

E2B wins when

  • You want raw SDK control over each sandbox, for an agent you wrote or for work that is not an agent at all.
  • You must self-host: the runtime is Apache-2.0, runs on one KVM host or ships as Terraform for AWS, GCP and Azure, and E2B also offers BYOC.
  • You want published per-second rates for CPU and RAM and up to 1,100 concurrent sandboxes on its top published tier.

Rush

Where Rush sits

Rush is built on E2B and is not a sandbox you script. It is the request that returns the pull request, for teams that would otherwise write the loop on either.

Honest limits

Skip Rush if

  • Rush runs three agents: Claude Code, Codex and OpenCode. It does not host an agent you wrote yourself.
  • Repositories come through the Rush GitHub App. A GitLab or Bitbucket repository cannot be a run's repository yet.
  • There is no self-hosted or customer-VPC deployment, and we do not publish a compliance report today.
  • Compute is metered. Free includes 5 agent-hours a month and Pro 40, each with a weekly ceiling.
  • You review the pull request. Rush does not merge for you.

FAQ

Questions people actually ask

Is Vercel Sandbox cheaper than E2B?

List prices, read off each vendor's pricing page on 17 October 2026. Vercel Sandbox: Hobby free with 5 Active CPU hours / month; Pro draws from the $20 / month credit. E2B: Hobby $0 with a one-time $100 credit; Pro $150 / month plus usage. The units differ, so price the job you run, not the plan.

Where does Rush fit next to Vercel Sandbox and E2B?

Rush is built on E2B and is not a sandbox you script. It is the request that returns the pull request, for teams that would otherwise write the loop on either.

Cluster

Keep reading

Citations

Sources

Every factual claim on this page traces to one of these URLs. Retrieval date is 17 October 2026 unless the source prints an earlier published date.

  1. [1] Vercel, “Vercel Sandbox”, retrieved 2026-10-17. https://vercel.com/docs/sandbox
  2. [2] Vercel, “Vercel Sandbox pricing and quotas”, retrieved 2026-10-17. https://vercel.com/docs/sandbox/pricing
  3. [3] Vercel, “Run untrusted code with Vercel Sandbox, now generally available”, published 2026-01-30. https://vercel.com/blog/vercel-sandbox-is-now-generally-available
  4. [4] Vercel, “Vercel Sandbox vs E2B”, published 2026-03-20. https://vercel.com/kb/guide/vercel-sandbox-vs-e2b
  5. [5] Vercel, “Sandboxes (Vercel MCP tools)”, retrieved 2026-10-17. https://vercel.com/docs/agent-resources/vercel-mcp/tools/sandboxes
  6. [6] E2B, “E2B Pricing”, retrieved 2026-10-17. https://e2b.dev/pricing
  7. [7] E2B, “E2B | The Enterprise AI Agent Cloud”, retrieved 2026-10-17. https://e2b.dev/
  8. [8] E2B, “Sandbox persistence”, retrieved 2026-10-17. https://docs.e2b.dev/sandbox/persistence
  9. [9] E2B, “Claude Code - E2B Docs”, retrieved 2026-10-17. https://docs.e2b.dev/agents/claude-code
  10. [10] E2B, “Coding Agents - E2B Docs”, retrieved 2026-10-17. https://docs.e2b.dev/use-cases/coding-agents
  11. [11] E2B, “Available servers - E2B Docs”, retrieved 2026-10-17. https://docs.e2b.dev/mcp-gateway/available-servers
  12. [12] E2B, “e2b-dev/infra (GitHub README)”, retrieved 2026-10-17. https://github.com/e2b-dev/infra
  13. [13] Rush, “Rush product requirements”, retrieved 2026-09-15. https://getrush.ai/cloud
  14. [14] Rush, “Rush pricing (live contract on getrush.ai)”, retrieved 2026-09-15. https://getrush.ai/pricing
  15. [15] Rush, “Isolation, plainly”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/isolation
  16. [16] Rush, “Results and proof”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/results-and-proof
  17. [17] Rush, “Usage and billing”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/usage-and-billing
  18. [18] Rush, “Rush MCP server”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/mcp-server
  19. [19] Rush, “Automations”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/automations

Next

Run the next Task on Rush

Connect a repository. Pick Claude Code, Codex, or OpenCode. Review the PR.

How the runtime works