Best code-execution sandbox for running AI-generated code
If your agent writes and runs code, these are the runtimes that execute it safely and fast. Ranked by cold start, with isolation and price noted.
Verified 2026-07-26
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- 2Cloudflare Sandbox SDK AI code-execution sandboxDetails →
V8 isolate + container · 50ms start · $0.072/vCPU-hr
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- 5Northflank AI code-execution sandboxDetails →
Kata / gVisor microVM (selectable) · 300ms start · $0.01667/vCPU-hr
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- 14Together Code Interpreter AI code-execution sandboxDetails →
Managed isolated sandbox · n/ams start · usage-based
- 15Details →
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How we ranked this
Ranked by published cold-start / start-up time. Isolation model (microVM vs container vs isolate) and headline vCPU-hour price are shown so you can trade speed against security and cost.
Rankings reflect published specs as of the verified date and are not paid placements. Corrections welcome at hello@comparesandboxes.com.