# CompareSandboxes > The neutral, always-current comparison hub for AI-agent code sandboxes, enterprise & API sandboxes, and regulatory sandboxes. Real specs, live pricing, dated benchmarks. CompareSandboxes is a neutral, independently maintained comparison hub. Every data point carries a "last verified" date and links to a primary source. "Sandbox" spans three distinct categories, indexed below. ## AI Agent & Code-Execution Sandboxes Ephemeral, secure runtimes — microVMs and containers — that spin up in milliseconds so agents and apps can execute generated code safely. Compared on cold start, isolation, pricing, GPU, persistence and SDK support. - Category hub: https://comparesandboxes.com/ai-agent-sandboxes - [E2B](https://comparesandboxes.com/sandbox/e2b): E2B is a Firecracker-microVM sandbox that gives AI agents a secure, ~150ms-cold-start environment to run generated code, with pause/resume and filesystem snapshots. - [Daytona](https://comparesandboxes.com/sandbox/daytona): Daytona is an open-source, container-isolated sandbox for AI agents with sub-90ms creation, persistent stateful workspaces, mid-execution snapshots and optional H100 GPUs. - [Modal](https://comparesandboxes.com/sandbox/modal): Modal is a Python-first serverless compute platform whose Sandboxes offer gVisor isolation, sub-second cold start and — uniquely — GPUs (T4 through B200) inside the sandbox. - [Vercel Sandbox](https://comparesandboxes.com/sandbox/vercel-sandbox): Vercel Sandbox is a Firecracker-based, JavaScript/TypeScript-native sandbox that is persistent by default, billed on active CPU plus a per-creation fee. - [Cloudflare Sandbox SDK](https://comparesandboxes.com/sandbox/cloudflare-sandbox): Cloudflare Sandbox SDK runs code on Cloudflare Containers + Durable Objects, blending V8 isolates (sub-50ms) with containers, bundled into the Workers Paid plan. - [Northflank](https://comparesandboxes.com/sandbox/northflank): Northflank runs sandboxes with selectable Kata/gVisor microVM isolation, unlimited session duration, any OCI image and BYOC deployment — at the lowest published vCPU rate in the category. - [Blaxel](https://comparesandboxes.com/sandbox/blaxel): Blaxel is an idle-cost-optimized sandbox that resumes from hibernation in ~25ms with memory and processes intact, and charges $0 for compute on standby. - [Runloop](https://comparesandboxes.com/sandbox/runloop): Runloop provides enterprise "devbox" infrastructure for coding agents — SOC 2, 10K+ parallel instances, git-style disk snapshots with branching, and built-in SWE-bench evaluation. - [Fly.io Machines](https://comparesandboxes.com/sandbox/fly-machines): Fly.io Machines are fast-booting microVMs with a persistent ext4 filesystem, ~300ms checkpoints, zero idle cost and a native MCP endpoint. - [CodeSandbox SDK](https://comparesandboxes.com/sandbox/codesandbox-sdk): CodeSandbox SDK (now Together Code Sandbox) runs Firecracker microVMs with a git-versioned filesystem, ~500ms resume and sub-second forking, tuned for web-dev agents. ## Enterprise, Cloud & API Sandboxes Vendor-provided sandboxes for building against a platform without touching production — Salesforce and ServiceNow orgs, cloud learning accounts, and payment/fintech API test environments like Stripe, Plaid and Mastercard. - Category hub: https://comparesandboxes.com/enterprise-sandboxes - [Salesforce Sandbox](https://comparesandboxes.com/sandbox/salesforce): A Salesforce sandbox is an isolated copy of a production org — available as Developer, Developer Pro, Partial Copy or Full — used to build and test changes safely before deploying. - [ServiceNow PDI](https://comparesandboxes.com/sandbox/servicenow): A ServiceNow Personal Developer Instance (PDI) is a free, full-featured ServiceNow instance from the Developer Program for building and learning, subject to reclamation if left idle. - [Stripe Sandbox](https://comparesandboxes.com/sandbox/stripe): A Stripe sandbox is an isolated copy of a Stripe account with its own API keys, webhooks and data — now the default way to test, replacing legacy test mode. - [Plaid Sandbox](https://comparesandboxes.com/sandbox/plaid): Plaid Sandbox is a free environment with mock financial data and unlimited test Items for building against Plaid before moving to Production. - [AWS Sandbox](https://comparesandboxes.com/sandbox/aws-sandbox): An "AWS sandbox" can mean three different things — the free AWS Builder Center Sandbox, an isolated Sandbox OU account under AWS Organizations, or the Innovation Sandbox on AWS solution. - [Mastercard Sandbox](https://comparesandboxes.com/sandbox/mastercard): The Mastercard Developers sandbox gives each project a test environment that mirrors production APIs, with Postman/Insomnia collections and per-API test cards. - [Shopify Development Store](https://comparesandboxes.com/sandbox/shopify-dev-store): A Shopify development store is a free, full-featured store that acts as a sandbox for building and testing apps and themes before going live. ## Regulatory & Fintech Sandboxes Programs run by regulators (and the platforms that support them) that let firms trial innovative financial products with real customers under a controlled, time-limited regime. - Category hub: https://comparesandboxes.com/regulatory-sandboxes - [FCA Digital Sandbox](https://comparesandboxes.com/sandbox/fca-sandbox): The FCA's Regulatory Sandbox and Digital Sandbox let firms test innovative financial products with real consumers under the UK regulator's supervision. - [MAS FinTech Regulatory Sandbox](https://comparesandboxes.com/sandbox/mas-sandbox): The Monetary Authority of Singapore runs a FinTech Regulatory Sandbox (and Sandbox Express) that lets firms experiment with innovative financial services in a controlled environment. - [NayaOne Sandbox](https://comparesandboxes.com/sandbox/nayaone): NayaOne provides a Digital Sandbox that lets banks and financial institutions discover, evaluate and test fintech vendors against synthetic data in one governed environment. ## Head-to-head comparisons - https://comparesandboxes.com/compare/e2b-vs-daytona - https://comparesandboxes.com/compare/e2b-vs-modal - https://comparesandboxes.com/compare/modal-vs-daytona - https://comparesandboxes.com/compare/e2b-vs-vercel-sandbox - https://comparesandboxes.com/compare/vercel-sandbox-vs-cloudflare-sandbox - https://comparesandboxes.com/compare/e2b-vs-northflank - https://comparesandboxes.com/compare/daytona-vs-blaxel - https://comparesandboxes.com/compare/modal-vs-northflank ## Tools & data - AI sandbox benchmark (dated): https://comparesandboxes.com/benchmark - Cost calculator: https://comparesandboxes.com/tools/cost-calculator - Best AI agent sandboxes: https://comparesandboxes.com/best/ai-agent-sandboxes - Guide — Salesforce sandbox types: https://comparesandboxes.com/guides/salesforce-sandbox-types Last generated from live data. Corrections: hello@comparesandboxes.com