E2B vs CodeSandbox SDK
CS| E2B | CSCodeSandbox SDK | |
|---|---|---|
| Isolation | Firecracker microVM | Firecracker microVM |
| Cold start | 150ms | 500ms |
| Price / vCPU-hr | $0.05 | $0.05 |
| GPU | No | No |
| Session limit | Up to 24h | Configurable |
| Persistence | Pause/resume with memory state, snapshots | Git-versioned filesystem, forking |
| MCP support | n/a | n/a |
| Free tier | $100 one-time credit (Hobby) | Free tier |
| Best for | Teams that want the cleanest SDK and strong microVM isolation for agent code execution. | Web-development agents that fork and branch environments frequently. |
The verdict
Choose E2B for teams that want the cleanest SDK and strong microVM isolation for agent code execution. Choose CodeSandbox SDK for web-development agents that fork and branch environments frequently.
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 CodeSandbox SDK: which is better?
It depends on your priority. E2B has the faster cold start (150ms vs 500ms). E2B is best for teams that want the cleanest SDK and strong microVM isolation for agent code execution. CodeSandbox SDK is best for web-development agents that fork and branch environments frequently.
Is E2B or CodeSandbox SDK cheaper?
E2B and CodeSandbox SDK list the same headline rate ($0.05 per vCPU-hour). Total cost depends on idle time, session length and creation fees. Model your workload in the cost calculator.
Still choosing between E2B and CodeSandbox SDK?
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