CodeSandbox vs Vercel

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.

Vercel provides infrastructure for building, deploying, securing, observing, and scaling apps and agents. Connect a GitHub, GitLab, or Bitbucket repository to trigger automatic deployment when changes reach the connected branch. The platform includes automatic CI/CD, a global CDN, Fluid Compute, and traffic and performance insights. Listed frameworks include Next.js, Nuxt, SvelteKit, Nitro, Turborepo, TanStack Start, and FastAPI. Its marketplace includes integrations across AI, analytics, authentication, CMS, databases, commerce, and security; featured integrations include Neon, Shopify, and Resend. Vercel also lists AI SDK, AI Gateway, Sandbox, and Vercel Agent. Its Firewall provides automatic DDoS mitigation on all plans and custom rules to log, block, challenge, or rate-limit traffic. Hobby is free for personal, non-commercial use, with monthly limits and no option to buy usage beyond its caps. Pro costs $20 a month for one developer seat, includes a $20 usage credit, and charges pay-as-you-go beyond that credit. Enterprise pricing is custom.