# Sprites vs Together Code Sandbox

> Sprites scores 58.3 (C) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 3 of 7 scored categories. Together Code Sandbox leads on schema & documentation. Both do sandbox code. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox
- Markdown: https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox.md (~2,750 tokens)
- Slim: https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

Sprites scores 58.3 (C) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 3 of 7 scored categories. Together Code Sandbox leads on schema & documentation. Both do sandbox code.

- Sprites: grade C, 58.3/100, rank #528 of 842. Markdown https://www.anchorterminal.com/tools/sprites.md · JSON https://www.anchorterminal.com/api/v1/tools/sprites.json
- Together Code Sandbox: grade D, 53.6/100, rank #628 of 842. Markdown https://www.anchorterminal.com/tools/together-code-sandbox.md · JSON https://www.anchorterminal.com/api/v1/tools/together-code-sandbox.json

## Which one, for what

### Sprites (C)

Good for: Agents that need a long-lived machine with installed tools and files kept between sessions, and rollback by checkpoint.

Ahead on:
- Reliability, 55 against 25
- Security & auth, 59 against 47
- Payments & pricing, 30 against 20

Watch for: Four Sprites incidents on the status page in 90 days, including a partial outage of 7 hours 28 minutes on 23 September 2026 and failed creates outside Europe for 28 minutes on 8 October

### Together Code Sandbox (D)

Good for: Teams already buying from Together, and former CodeSandbox SDK users, who want Docker-defined sandboxes with disk and memory snapshots from Python or TypeScript.

Ahead on:
- Schema & documentation, 86 against 74

Also in its favour:
- A hosted endpoint, with nothing to install

Watch for: The SDK and CLI work only for organisations Together has enabled, and the docs say to contact Together for access


## Score by category

| Category | Weight | Sprites | Together Code Sandbox | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 55 | 25 | Sprites +30 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 74 | 86 | Together Code Sandbox +12 |
| Agent ergonomics | 13% (16.2 this run) | 68 | 70 | Together Code Sandbox +2 |
| Security & auth | 14% (17.5 this run) | 59 | 47 | Sprites +12 |
| Payments & pricing | 10% (12.5 this run) | 30 | 20 | Sprites +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 80 | 83 | Together Code Sandbox +3 |
| Transparency & trust | 7% (8.8 this run) | 59 | 60 | Together Code Sandbox +1 |
| Negative events | ≤15 | -2 | 0 | |
| **Total** | | **58.3 · C** | **53.6 · D** | |

## Facts side by side

| Fact | Sprites | Together Code Sandbox |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Fly.io | Together AI |
| Hosted endpoint | no (local only) | `https://api.bartender.codesandbox.io` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Licence | Proprietary service under the Fly.io Terms of Service. The JavaScript, Go, Python and Elixir SDKs are MIT | Proprietary service under Together's terms of service. The SDKs, CLI and OpenAPI documents on GitHub are MIT |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| Last release | 2026-10-06 | 2026-10-07 |
| Terms last updated | 2026-04-29 | no date given |
| Privacy policy last updated | 2026-09-24 | no date given |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 158k npm/wk, 59k PyPI/wk | 3 stars, 1.3k npm/wk, 3.4k PyPI/wk |

## Verdicts

**Sprites.** A Sprite keeps a 100 GB ext4 disk between runs, bills compute only while active and can be checkpointed and restored through a published OpenAPI contract. The status page records four Sprites incidents in the last 90 days, one lasting over seven hours, and outbound network access is unrestricted until a policy is set.

**Together Code Sandbox.** Two public OpenAPI documents, MIT clients for Python and TypeScript, cursor pagination and built-in retries make the surface easy for an agent to drive. Access is the limit. Together enables the SDK per organisation on request, publishes no rate limits or SLA, and neither status page names the sandbox service.

## Before you call either

### Sprites

1. Create a token at sprites.dev/account after a browser signup, and send it as `Authorization: Bearer <token>` to `https://api.sprites.dev`
2. Follow the OpenAPI document, not the product page example. Create with `POST /v1/sprites` and a JSON `name`, and run commands with `POST /v1/sprites/{name}/exec` using `cmd` query parameters
3. Set a network policy with `POST /v1/sprites/{name}/policy/network` before running untrusted code. Egress is open until one is set
4. Processes started by exec stop on a cold wake. Define a Service for anything that must answer the request that wakes the Sprite
5. Create a checkpoint before a restore. Restoring replaces the filesystem, ends active sessions and keeps no copy of the replaced state
6. Sprite creation is limited to 10 a minute on pay-as-you-go. The Go SDK reads `Retry-After` and the error code `sprite_creation_rate_limited` on a 429
7. Delete Sprites you no longer need. An idle Sprite still bills cold storage for the bytes it holds

### Together Code Sandbox

1. Confirm the organisation is on Together's allowlist before installing. A valid `TOGETHER_API_KEY` alone is not enough
2. Build a snapshot first with `snapshots.create`. No default image exists, and every sandbox needs `snapshot_id` or `snapshot_alias`
3. Set `ttl` at creation or call `terminate()`. Nothing stops a sandbox otherwise, and closing the Python client leaves it running
4. Store the snapshot alias, not the sandbox ID. A terminated sandbox can't restart, and its state lives at `sandbox:<id>`
5. Exclude `snapshots.create` from retries with `should_retry`, and set `experimental.network_policy` before serving anything private on a port

## Questions

### Which is better for AI agents, Sprites or Together Code Sandbox?

Sprites scores 58.3 (C) on agent readiness against Together Code Sandbox's 53.6 (D), and leads in 3 of 7 scored categories. Together Code Sandbox leads on schema & documentation.

### Do Sprites and Together Code Sandbox need an API key?

Both need an API key.

### Can an agent call Sprites and Together Code Sandbox without installing anything?

No hosted endpoint is listed for Sprites. Together Code Sandbox has a hosted endpoint at https://api.bartender.codesandbox.io.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox.json, and with the fewest tokens: https://www.anchorterminal.com/compare/sprites-vs-together-code-sandbox.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "sprites", "b": "together-code-sandbox"}`. From a terminal: `anchor compare sprites together-code-sandbox`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/sprites.json and https://www.anchorterminal.com/api/v1/tools/together-code-sandbox.json

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