# Cloudflare Sandbox SDK vs Modal Sandboxes (slim)

> Modal Sandboxes has a score of 75.6 (BB) against Cloudflare Sandbox SDK's 67.8 (B). Both do sandbox code. The largest gap is maintenance & community, 23 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes.md (~1,450 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes.json · canonical https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-modal-sandboxes
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

Modal Sandboxes has a score of 75.6 (BB) against Cloudflare Sandbox SDK's 67.8 (B). Both do sandbox code. The largest gap is maintenance & community, 23 points.

- Cloudflare Sandbox SDK: B 67.8, rank #137 of 452 · https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.min.md
- Modal Sandboxes: BB 75.6, rank #33 of 452 · https://www.anchorterminal.com/tools/modal-sandboxes.min.md
- Pick Cloudflare Sandbox SDK for nothing in particular. Pick Modal Sandboxes for reliability (+8), security & auth (+11), payments & pricing (+10), maintenance & community (+23).

| Category | Cloudflare Sandbox SDK | Modal Sandboxes |
| --- | --- | --- |
| Reliability (16%) | 87 | 95 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 77 | 79 |
| Agent ergonomics (13%) | 63 | 67 |
| Security & auth (14%) | 65 | 76 |
| Payments & pricing (10%) | 30 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 70 | 93 |
| Transparency & trust (7%) | 73 | 74 |