CodeSandbox SDK (Together)

provider: "codesandbox"

Fixed tiers: Pico 2 vCPU / 1 GB $0.0743/h, Nano 2 / 4 $0.1486/h, up to 64 / 128 $4.7552/h; credits $0.01486, billed per started minute; Build free, 10 concurrent; Scale $170/mo incl. 1,100 credits.

List price per hour

1 vCPU · 2 GB	$0.149
2 vCPU · 4 GB	$0.149
4 vCPU · 8 GB	$0.297
8 vCPU · 16 GB	$0.594
16 vCPU · 32 GB	$1.19
32 vCPU · 128 GB	$4.76

Source: docs.together.ai, 2026-11-05 (an estimate, not a bill)
Billing: the size you ask for, while it runs
Plan: none needed

Adapter

Supports: Exec + streaming · Files · Pause · Custom image
Max size: 64 vCPU · 128 GB
Routing: Chosen when it's the cheapest fit, or as a fallback
Docs: codesandbox.io

Measured on real accounts

Real-account check: not run yet; tested against a mock of its API only
Cold start: not measured; no benchmark run yet
Succeeded: not measured; no benchmark run yet
Size you get: not measured; no cost run yet
Billed vs list price: not measured; no cost run yet

Help verify CodeSandbox SDK (Together)

Have a CodeSandbox SDK (Together) account? These run real sandboxes on it, for a few cents at most, and write result files that fill in the blanks above. Results never include your keys. Run them in a clone of the repo and open a pull request with the files: CI checks every file for keys and impossible numbers, and a maintainer reviews each one before it shows here.

terminal

npx @sandboxrouter/sdk check --provider codesandbox --save --by YOUR_GITHUB_USERNAME
npx @sandboxrouter/sdk bench --provider codesandbox --runs 5 --share --label "your city or cloud region" --by YOUR_GITHUB_USERNAME
npx @sandboxrouter/sdk cost run --provider codesandbox --minutes 10 --by YOUR_GITHUB_USERNAME

Real-account check, step by step

Not run on a real account yet; the adapter is tested against a mock of CodeSandbox SDK (Together)'s API.

setup

npm i @sandboxrouter/sdk @codesandbox/sdk
export CSB_API_KEY=...

use CodeSandbox SDK (Together)

import { Router } from "@sandboxrouter/sdk";

const router = new Router();
const sbx = await router.create({}, { provider: "codesandbox" });
await sbx.exec("uname -a", { onStdout: (c) => process.stdout.write(c) });
await sbx.kill();