THE COMPARISON / A CLOSER LOOK
CodeSandbox vs E2B
Compare the listed plans, useful capabilities, and practical tradeoffs.
Prices and features reflect editorial records. Check vendor terms before you buy; documentary checks do not imply hands-on testing.
CodeSandbox
🟡Low CodeApp Deployment
CodeSandbox is a cloud development and code-execution platform — now part of Together AI — built around the Sandbox SDK and Firecracker microVMs with 2-second…
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Starting Price
FreeE2B
🔴DeveloperAI Infrastructure & Training
Open-source secure code-execution sandbox for AI agents — spin up a fresh Linux VM in under 200ms, hand your agent a Python/Node/Bash environment, and get…
SOURCE-CHECK COVERAGE
No scoped source-check record shown. Check current pricing and vendor terms before buying.
Starting Price
FreeFeature Comparison
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CodeSandbox - Pros & Cons
Pros
- ✓2-second VM startup on Firecracker microVMs is best-in-class for many AI agent workloads
- ✓Sandpack and Storybook integrations have unmatched distribution across JS/React docs and learning sites
- ✓Together AI ownership ties the SDK to a clear model/inference + agent infrastructure path
Cons
- ✗Pricing page now blocks crawlers (HTTP 403) — pricing transparency dropped after the Together AI acquisition
- ✗No public MCP server yet — agent integrations go through the CodeSandbox SDK directly
- ✗Modal Labs and E2B can be cheaper per second for pure Python eval workloads without browser IDE needs
E2B - Pros & Cons
Pros
- ✓Strong isolation via Firecracker — safe enough for fully LLM-generated code
- ✓150ms cold-start is fast enough for interactive chat-style agents
- ✓Drop-in ChatGPT-style Code Interpreter SDK with persistent Jupyter kernels
- ✓Desktop sandbox makes browser-use and computer-use agents practical
- ✓Production-proven (Perplexity, Hugging Face) and well-instrumented
Cons
- ✗Per-hour pricing can balloon for long-running autonomous agents
- ✗Pro tier only includes 20 hours/mo — most teams burn through it
- ✗Smaller per-sandbox resource limits than running on your own GPU box
- ✗No GPU access on standard sandboxes (use Modal or RunPod for that)
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