CodeSandbox vs Context Agent Sandboxes

CodeSandbox is a web and iOS service for creating isolated development environments that execute code. Its SDK can spin up environments programmatically, while microVMs can be started, cloned, or restored from snapshots within two seconds. Snapshots let work resume in the same sandbox after inactivity, and users can set the inactivity period before automatic hibernation. Multiple agents can run in parallel without interfering, and forking supports A/B testing of different agents. Tests can run inside sandboxes for CI/CD, with environments able to hibernate after completion. Sandpack provides live browser coding, Storybook Integration creates a playground for each story, and CodeSandbox lists a VS Code extension. The service says it can handle millions of concurrent VMs. CodeSandbox was founded in 2017, is headquartered in Amsterdam, and CodeSandbox BV is a Together AI company.

Context Agent Sandboxes gives each agent task a separate sandbox on the customer's cluster, using the permissions of the person who requested it. Each run begins in a fresh environment, which is destroyed after an idle period set to 30 minutes by default. Sandboxes run as non-root container pods with capabilities dropped, a seccomp profile, and no cluster service-account token. Administrators can choose open, domain-allowlist, or workspace-only network access, with allowlist decisions logged. In the supervised preset, commands require human approval and connections outside the allowlist prompt for a decision. Drive is not mounted: files pass through a permission-checking gateway, and outputs are pushed explicitly. Credentials are injected at the edge only after authorization. An append-only audit log records commands, files, connections, and permission decisions, including the actor and decision maker. Context lists more than 180 integrations across business categories, plus remote MCP servers. Enterprise sandboxes run on the customer's Kubernetes cluster, with KOTS installation options for EKS or AKS and an air-gapped bundle. Plans include Free at free, Plus at $20 a month, Pro at $200 a month, and custom-priced Enterprise.