Best code execution sandbox for OpenHands
Evaluate OpenHands runtime choices by compatibility, lifecycle, browser needs, and operational cost. Compare your options.
Maintained by the Matrix OS team. Product instructions are updated with the supported workflow.
Getting a shell command to run in a sandbox feels like progress. It is also a long way from proving that the whole agent works there.
Start with OpenHands' documented runtimes, then test an external sandbox only if you can verify the integration end to end. Matrix OS is a possible retained project workspace in this discussion, not a claimed native OpenHands sandbox backend.
OpenHands execution shortlist
| Option | Use case | Compatibility work | Cost basis |
|---|---|---|---|
| OpenHands Cloud | Fast hosted OpenHands evaluation | Use the provider-supported setup | Hosted plan/model usage |
| Documented self-hosted runtime | Control over deployment | Operate the supported runtime stack | Host and model charges |
| Modal Sandbox | Programmatic execution infrastructure | Validate an OpenHands adapter yourself | Compute usage |
| E2B Sandbox | SDK-managed isolated execution | Validate agent/runtime integration | Plan plus compute |
| Daytona Sandbox | Explicit lifecycle control | Validate runtime and artifact handling | Metered resources |
| Matrix OS | Persistent human-facing project workspace | No native OpenHands integration claimed | From $20/month; AI separate |
Sources: OpenHands options, Modal Sandboxes, E2B persistence, Daytona sandboxes.
What a compatibility test must cover
Pin the OpenHands version first. Then follow a task through the runtime: execute a command, edit a file, install a dependency, reach the model, and retrieve the result. Try both a clean environment and one you resume.
Add a browser task if your repository needs one. A passing terminal test does not establish that browser dependencies, preview routing, and exported evidence will work. Find that out while the project is still small.
Finally, expire or stop the test environment on purpose. Check what happens to files, conversation state, and output. You want a known recovery path, not a useful result trapped inside a runtime you can no longer reach.
When to use Matrix OS vs sandbox infrastructure
Choose a sandbox API when you are building an execution service. Choose Matrix when the person doing the work needs a retained desktop with browser, terminal, files, and projects across tasks. If you install additional software on Matrix, treat its operation and compatibility as your own deployment work unless documented otherwise.
For an OpenHands-first buyer, its managed Cloud offering is a reasonable starting point. For a bring-your-own-agent buyer, compare Matrix without requiring an OpenHands migration.
Make the cost comparison useful
Include the adapter work. A low compute price can look less attractive after someone spends several days maintaining the bridge between the agent and its runtime.
Record model usage, active compute, retained storage, retries, and engineering time. For a small team, a supported managed route may be cheaper overall even when its headline price is higher.
For a platform team building an execution service, that same integration work may be worth doing. The relevant question is whether you will reuse it enough to justify owning it.
FAQ
Can any Linux sandbox run OpenHands?
Do not assume so. Runtime privileges, networking, dependencies, and supported adapters must match the selected OpenHands version.
Does Modal only offer GPU jobs?
No. Modal documents Sandboxes and CPU compute too. Its programmatic model is the relevant distinction here.
Is Matrix the recommended OpenHands backend?
This article makes no such compatibility claim. Read the OpenHands vs Matrix comparison before deciding which layer you need.
This is a Matrix OS guide, reviewed October 20, 2026. We compare documented capabilities and explain our recommendations; we have not benchmarked these products against each other. Agent usage is separate from workspace pricing unless stated otherwise.
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