# Freestyle vs Modal Sandboxes (slim)

> Modal Sandboxes scores 75.5 (BB) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema & documentation and payments & pricing. Both do sandbox code. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/freestyle-vs-modal-sandboxes.md (~2,400 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/freestyle-vs-modal-sandboxes.json · canonical https://www.anchorterminal.com/compare/freestyle-vs-modal-sandboxes
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Modal Sandboxes scores 75.5 (BB) on agent readiness against Freestyle's 58.5 (C), and leads in 4 of 7 scored categories. Freestyle leads on schema & documentation and payments & pricing. Both do sandbox code.

- Freestyle: C 58.5, rank #520 of 842 · https://www.anchorterminal.com/tools/freestyle.min.md
- Modal Sandboxes: BB 75.5, rank #45 of 842 · https://www.anchorterminal.com/tools/modal-sandboxes.min.md
- Freestyle, good for Suited to long-running agent work that needs a full Linux VM, memory-preserving pause, snapshots to branch from and private networking. Ahead on Schema & documentation, 86 against 79; Payments & pricing, 45 against 40. Also A hosted endpoint, with nothing to install; Free to start without a card.
- Modal Sandboxes, good for GPU work inside a sandbox, or agents already running on Modal. Ahead on Reliability, 95 against 43; Security & auth, 76 against 53; Maintenance & community, 93 against 71; Transparency & trust, 72 against 41. Also Agent-ready, a grade of BB or better.

| Category | Freestyle | Modal Sandboxes |
| --- | --- | --- |
| Reliability (16%) | 43 | 95 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 86 | 79 |
| Agent ergonomics (13%) | 69 | 67 |
| Security & auth (14%) | 53 | 76 |
| Payments & pricing (10%) | 45 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 71 | 93 |
| Transparency & trust (7%) | 41 | 72 |

| Fact (where they differ) | Freestyle | Modal Sandboxes |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Freestyle Cloud Inc. | Modal |
| Hosted endpoint | `https://api.freestyle.sh/v5` | no (local only) |
| Transports | HTTP |  |
| Licence | Proprietary service with no published terms of service found. The `freestyle` SDK and CLI package on npm is MIT | Apache-2.0 |
| Last release | 2026-09-27 | 2026-09-28 |
| Terms last updated | no document linked | 2026-05-01 |
| Privacy policy last updated | no document linked | 2023-05-17 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 72k npm/wk | 514 stars, 941k npm/wk, 10.1M PyPI/wk |
| Agent reviews | none | 3.3/5 (8) |