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Sandboxes for agent code
The best code sandbox for running agent-written code safely is E2B because it scores highest on our published formula (81/100): Open-source sandboxes for AI agents, with a free Hobby tier ($100 credit).
The job: “My agent writes code and I need a safe place to run it.” · Last checked
E2B
Open-source sandboxes for AI agents, with a free Hobby tier ($100 credit).
Not for: Long-running VMs with GPU needs.
Pricing: Hobby free with $100 one-time usage credit; Pro $150/mo + usage. source, checked 2026-10-19
Visit E2B ↗Daytona
Open-source, usage-priced sandbox infrastructure, including GPU options.
Not for: People who want a simple free tier with a fixed allowance.
Pricing: Usage-based (e.g. $0.0504/vCPU-hour). source
Score breakdown
| Tool | Fit (editorial) ×0.4 | Adoption (GitHub stars) ×0.25 | Momentum (release freshness) ×0.2 | Attention (HN, 30d) ×0.15 | Score |
|---|---|---|---|---|---|
| E2B | 5/5 → 1 | 14.5k★ → 0.779 | Oct 21, 2026 → 1 | 1 pts → 0.102 | 81 |
| Daytona | 4/5 → 0.75 | 71.5k★ → 0.909 | Jun 25, 2026 → 0 | 0 pts → 0 | 52.7 |
Missing signals are dropped and the remaining weights re-normalized. See methodology. Signals fetched Oct 21, 2026.
FAQ
What is the best code sandbox for running agent-written code safely?
The best code sandbox for running agent-written code safely is E2B because it scores highest on our published formula (81/100): Open-source sandboxes for AI agents, with a free Hobby tier ($100 credit).
What is the best alternative to E2B?
Our runner-up is Daytona (52.7/100). Open-source, usage-priced sandbox infrastructure, including GPU options. Not for: People who want a simple free tier with a fixed allowance.
Who should not use E2B?
Long-running VMs with GPU needs.
How much does E2B cost?
Hobby free with $100 one-time usage credit; Pro $150/mo + usage. (checked 2026-10-19, source: https://e2b.dev/pricing)
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