CodeSandbox

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

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About

CodeSandbox is ranked #15 of 136 in coding playgrounds on Inferse, made by CodeSandbox (Amsterdam, Netherlands). It runs on Web, iOS.

Compared on coding playgrounds

Free plan: Yescodesandbox.io
Workspace config: devcontainercodesandbox.io
VCS hosts: githubcodesandbox.io
Prebuilds: Yescodesandbox.io
Persistent storage: Yescodesandbox.io

Facts

Free plan: Yescodesandbox.io · 22 Sept 2026
SDK purpose: Programmatically spin up dev environments for instant code execution.codesandbox.io · 27 Sept 2026
Free access: The page offers free starts and trials.codesandbox.io · 27 Sept 2026
Code isolation: Every environment runs in isolation for safer untrusted code execution.codesandbox.io · 27 Sept 2026
VM scalability: The service says it can handle millions of concurrent VMs.codesandbox.io · 27 Sept 2026
Snapshot resume: Development can resume in the same sandbox after inactivity using snapshots.codesandbox.io · 27 Sept 2026
VM start speed: MicroVMs can be spun up, cloned, and restored from snapshots within 2 seconds.codesandbox.io · 27 Sept 2026
Hibernation control: Users can customize inactivity periods before automatic hibernation.codesandbox.io · 27 Sept 2026
Parallel agents: Multiple agents can run in parallel without interfering with each other.codesandbox.io · 27 Sept 2026
Agent A/B testing: Forking supports A/B testing of different agents.codesandbox.io · 27 Sept 2026
CI/CD support: Tests can run inside sandboxes, which can hibernate after completion.codesandbox.io · 27 Sept 2026
Storybook integration: Storybook Integration provides a code playground for every story.codesandbox.io · 27 Sept 2026
Browser coding: Sandpack enables live coding in the browser.codesandbox.io · 27 Sept 2026
VS Code support: CodeSandbox lists a VS Code Extension as an ecosystem feature.codesandbox.io · 27 Sept 2026
Together AI relationship: CodeSandbox is now part of Together AI and joined forces on CodeSandbox SDK.codesandbox.io · 27 Sept 2026
Company identity: CodeSandbox BV is identified as a Together AI company.codesandbox.io · 27 Sept 2026
Code scale: The page reports more than 0.0 billion lines of code written.codesandbox.io · 27 Sept 2026