AI agent sandboxes: where your agent runs code
A sandbox is an isolated machine or container where an AI agent can run code, browse or use tools without touching your own system. Notes below were read from each provider's own page on Oct 30 2026 (checked Oct 30 2026). Confirm current pricing on the provider's page.
We may earn from links marked Affiliate partner (disclosure).
Sandbox providers
| Provider | Notes (checked Oct 30 2026) | Link |
|---|---|---|
| Novita Sandbox Affiliate partner | Secure cloud runtimes with browser access, filesystem, computer use and long-running task support, per Novita. | Sandbox |
| E2B Official site | Free Hobby tier with $100 one-time usage credit; Pro $150/month plus usage. Billed per second of a running sandbox (2 vCPU default $0.000028/s). | Pricing |
| Modal Official site | Starter: $0 plus compute, with $30/month free credits. Pay per second for CPUs and GPUs. | Pricing |
| Daytona Official site | Usage-based, billed per second. Free trial, no credit card required. | Pricing |
E2B alternatives
- Novita Sandbox: browser access, filesystem, computer use and long-running tasks, per Novita (checked Oct 30 2026).
- Modal: per-second billing, \$30/month free credits on Starter (checked Oct 30 2026).
- Daytona: per-second billing, free trial with no credit card (checked Oct 30 2026).
What to check: isolation, start time, pricing
Check how each sandbox is isolated, how fast a new one starts, how long a session can run, and whether it bills per second or by plan. Confirm these in each provider's docs.
Frequently asked questions
What is an LLM sandbox?
It's an isolated environment where code written or run by a language model executes safely, so a mistake or a bad command can't reach your own files or network.
Just need a model, not a machine? See LLM API pricing.
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