Compare · Agent sandboxes · verified 17 Oct 2026

Rush vs E2B

Rush runs on E2B. One is the sandbox; the other is the agent, the repository steps and the result built on top of it.

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
The short answer

Pick E2B when you are building the agent platform yourself. Pick Rush when you want the work done and the pull request back, on the same E2B microVMs.

Proof

A real Rush run

Console capture of a coding Task that opened a pull request. Not a mockup.

cloud.getrush.ai · run-af7b2434
Rush console reviewing a pull request

Read this first

The useful distinction

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.

A sandbox is a computer for an agent. You still write the agent loop, clone the repository, push the branch and decide when the work is done. Rush is the layer above: you send the task and get back the pull request, report or files.

Head to head

Buyer questions

QuestionRushE2B
What runsClaude Code, Codex or OpenCode, the vendors' own CLIs, or a saved agent built on one.None built in. You bring the agent; E2B ships a prebuilt claude template and guides for Codex and OpenCode.
IsolationOne E2B microVM per run with its own disk, memory, desktop and browser. It parks between turns and is removed on cancel or after 7 idle days.Firecracker microVMs with dedicated kernels. A paused sandbox keeps its filesystem and memory, with no automatic deletion.
Result and pull requestA run on a repository works on its own branch and opens the pull request; a run whose checks fail ends needs_review, not completed. Reports and files come back as artifacts.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.
MCPRush is an MCP server at api.prix.dev/mcp with 18 tools. A run also takes MCP servers by connection or inline.An MCP gateway inside the sandbox reaches 200+ servers from Docker's catalog, or servers you run yourself.
TeamEveryone in the org sees the same Projects and runs, with who started each. Automations start runs from GitHub events, schedules, webhooks and Linear.An SDK for your own product. No shared task view or Slack and Linear surface on the pages we read.
Starting priceFree 5 agent-hours / month; Pro $20; Team $200Hobby $0 with a one-time $100 credit; Pro $150 / month plus usage
Where it taps outThree harnesses. Repositories through the GitHub App only. No self-host or customer VPC. A key runs 4 at once by default, up to 100.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

Rush wins when

  • You want the agent run for you: send the task and get the pull request with checks, not a git diff to push yourself.
  • Claude Code, Codex and OpenCode are installed and kept current for you. No template to maintain.
  • One record holds the transcript, the artifacts and the usage, and a run with missing proof ends needs_review.

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: every run gets its own E2B microVM. What Rush adds is the layer you would otherwise write, from the harness install and the GitHub App clone to the branch, the pull request, the transcript and the meter.

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

Does Rush run on E2B?

Yes. Every Rush run gets its own E2B microVM with its own disk, memory, desktop and browser. Rush is the agent, repository and proof layer on top, so the isolation is the same, not stronger.

Is Rush cheaper than E2B?

They price different things. E2B bills sandbox seconds ($0.000014 per vCPU-second) and you run and pay for the agent yourself. Rush plans include agent-hours of sandbox time (5 free, Pro $20) and run the agent on your own Claude or ChatGPT account.

Can I move from E2B to Rush?

Yes. The steps, from E2B's own docs, are on the Migrate from E2B to Rush page. Code you already pushed stays where it is.

Does Rush need my own model account?

By default a run uses your own Claude or ChatGPT subscription or API key, and your provider bills the model calls. Rush meters the sandbox compute against your plan, and parked time is free.

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] Rush, “Rush product requirements”, retrieved 2026-09-15. https://getrush.ai/cloud
  2. [2] Rush, “Rush pricing (live contract on getrush.ai)”, retrieved 2026-09-15. https://getrush.ai/pricing
  3. [3] Rush, “Isolation, plainly”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/isolation
  4. [4] Rush, “Results and proof”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/results-and-proof
  5. [5] Rush, “Usage and billing”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/usage-and-billing
  6. [6] Rush, “Rush MCP server”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/mcp-server
  7. [7] Rush, “Automations”, retrieved 2026-10-17. https://getrush.ai/docs/concepts/automations
  8. [8] E2B, “E2B Pricing”, retrieved 2026-10-17. https://e2b.dev/pricing
  9. [9] E2B, “E2B | The Enterprise AI Agent Cloud”, retrieved 2026-10-17. https://e2b.dev/
  10. [10] E2B, “Sandbox persistence”, retrieved 2026-10-17. https://docs.e2b.dev/sandbox/persistence
  11. [11] E2B, “Claude Code - E2B Docs”, retrieved 2026-10-17. https://docs.e2b.dev/agents/claude-code
  12. [12] E2B, “Coding Agents - E2B Docs”, retrieved 2026-10-17. https://docs.e2b.dev/use-cases/coding-agents
  13. [13] E2B, “Available servers - E2B Docs”, retrieved 2026-10-17. https://docs.e2b.dev/mcp-gateway/available-servers
  14. [14] E2B, “e2b-dev/infra (GitHub README)”, retrieved 2026-10-17. https://github.com/e2b-dev/infra

Next

Run the next Task on Rush

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

How the runtime works