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📖 The AI Tool Bible

E2B vs OpenSandbox

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

E2B logo
E2B
Agents
OpenSandbox logo
OpenSandbox
Agents
Tagline
E2B
E2B runs the isolated machine for AI agents to execute code and use tools.
OpenSandbox
OpenSandbox provides isolated environments for AI agents to execute code, use tools, and explore the web on user infrastructure.
Pricing
E2B
Freemium· Free tier · from $150/mo
OpenSandbox
Free
Lowest paid tier
E2B
$150/month · pro
captured 2026-11-05
OpenSandbox
—
Free trial
E2B
Yes
OpenSandbox
Not listed
API
E2B
Yes
OpenSandbox
Yes
Platforms
E2B
linux
OpenSandbox
cliapi
Open source
E2B
Yes
OpenSandbox
Yes
Hacker News stories
E2B
27
checked 2026-10-10
OpenSandbox
1
checked 2026-10-17
Earliest Wayback capture
E2B
2023-04-04
earliest archived capture of the site, not a launch date
OpenSandbox
2026-02-28
earliest archived capture of the site, not a launch date
Founded
E2B
2023
Wikidata
OpenSandbox
—
Headquarters
E2B
United States
Wikidata
OpenSandbox
—
Model used
E2B
LLM-agnostic (works with GPT-4o, Claude, Mistral, Llama, and self-hosted models)
OpenSandbox
Model-agnostic
Editorial score
E2B
—
OpenSandbox
7.0 / 10
Use cases
E2B
Coding and computer use agentsReinforcement learning rolloutsBuilding and serving apps from promptsProcessing sensitive data for report generation
OpenSandbox
model-generated code analysisparallel evaluation and training workloads
Pros
E2B
  • The vendor says that E2B provides true VM-level isolation with an Apache-2.0 runtime and SOC 2 Type II compliance.
  • Includes a full environment with shell, filesystem, browser, and network capabilities.
  • Supports deployment in E2B Cloud regions or within the user's own AWS, GCP, or Azure accounts.
  • Integrates with multiple model providers and over 200 MCP tools for agent functionality.
OpenSandbox
  • OpenSandbox is open source under the Apache 2.0 license.
  • The platform provides SDKs for Python, TypeScript, Java, Kotlin, Go, and C#/.NET.
  • Users can start with Docker and scale on Kubernetes.
  • The system restores Firecracker microVMs from pre-warmed capacity and preserves memory and disk state during pauses.
  • OpenSandbox keeps real credentials out of sandbox workloads while allowing agents to call external services.
Website
E2B
e2b.dev
OpenSandbox
open-sandbox.ai

Editorial score: rule-based, 0–10, from AI-assisted profile inputs (see /methodology) — not a user rating; “—” means unscored. “Not listed” means we have no record of it, not that it is absent. GitHub figures and prices carry the date they were checked or captured; prices are shown as published, unconverted.

Pick E2B if
  • ✅ The vendor says that E2B provides true VM-level isolation with an Apache-2.0 runtime and SOC 2 Type II compliance.
  • ✅ Includes a full environment with shell, filesystem, browser, and network capabilities.
  • ✅ Supports deployment in E2B Cloud regions or within the user's own AWS, GCP, or Azure accounts.
  • ✅ Integrates with multiple model providers and over 200 MCP tools for agent functionality.
Pick OpenSandbox if
  • ✅ OpenSandbox is open source under the Apache 2.0 license.
  • ✅ The platform provides SDKs for Python, TypeScript, Java, Kotlin, Go, and C#/.NET.
  • ✅ Users can start with Docker and scale on Kubernetes.
  • ✅ The system restores Firecracker microVMs from pre-warmed capacity and preserves memory and disk state during pauses.
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