# Cloudflare Sandbox SDK vs E2B (slim)

> E2B has a score of 68.5 (B) against Cloudflare Sandbox SDK's 67.8 (B). Both do sandbox code. The largest gap is reliability, 27 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-e2b.md (~1,400 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-e2b.json · canonical https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-e2b
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

E2B has a score of 68.5 (B) against Cloudflare Sandbox SDK's 67.8 (B). Both do sandbox code. The largest gap is reliability, 27 points.

- Cloudflare Sandbox SDK: B 67.8, rank #137 of 452 · https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.min.md
- E2B: B 68.5, rank #122 of 452 · https://www.anchorterminal.com/tools/e2b.min.md
- Pick Cloudflare Sandbox SDK for reliability (+27). Pick E2B for schema & documentation (+15), payments & pricing (+20), maintenance & community (+18).

| Category | Cloudflare Sandbox SDK | E2B |
| --- | --- | --- |
| Reliability (16%) | 87 | 60 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 77 | 92 |
| Agent ergonomics (13%) | 63 | 65 |
| Security & auth (14%) | 65 | 62 |
| Payments & pricing (10%) | 30 | 50 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 70 | 88 |
| Transparency & trust (7%) | 73 | 71 |