E2B

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The open-source, secure cloud environment for enterprise-grade AI agents and LLM training.

AI Agents Cloud & Infrastructure Developer Tools

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FreemiumVisit Website

Tracked since2026

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The Bottom Line

Entry price

Free plan available, paid tiers above

Biggest pro

Open-source and secure environment

Biggest con

Usage costs are separate from monthly fees and can add up

TL;DR - E2B

Provides secure, open-source AI sandboxes for agent development.
Enables AI agents to perform deep research, computer use, and automations.
Supports LLM training and Multi-Agent Systems with customizable compute resources.

Pricing: Free plan available

Best for: Growing teams

What is E2B?

Editorial review

E2B provides AI sandboxes, which are secure, open-source environments equipped with real-world tools for developing and deploying enterprise-grade AI agents. It's designed to enable AI agents to perform complex tasks like deep research on large datasets, computer usage, and various automations. The platform supports LLM training and the creation of Multi-Agent Systems (MCPs). This cloud platform is ideal for developers and organizations building sophisticated AI agents that require a robust and secure execution environment. It offers features like customizable CPU and RAM for sandboxes, varying session lengths, and concurrent sandbox capabilities, making it suitable for a wide range of AI development and operational needs, from individual hobbyists to large enterprises.

Available on: Web

LCLouis CorneloupUpdated May 26, 2026 · how we evaluateSourcee2b.dev ↗

Pros & Cons

Pros

Open-source and secure environment
Flexible and scalable compute resources for AI agents
Supports various AI agent types and LLM training
Free hobby tier available with no credit card required
Used by major AI companies like Perplexity and Hugging Face

Cons

Usage costs are separate from monthly fees and can add up
Ultimate/Enterprise pricing requires direct contact, lacking transparency

Preview

Key Features

Open-source AI sandboxesSecure execution environment for AI agentsReal-world tools for agentsDeep research agents for large datasetsComputer use agentsAutomation agentsBackground agentsReinforcement learning support

Pricing Plans

Pricing checked Jun 19, 2026

Hobby

Free + Usage Costs

One-time $100 of usage in credits
Community support
Up to 1-hour sandbox session length
Up to 20 concurrently running sandboxes

Pro

$150 / mo + Usage Costs

Everything in the Hobby tier
Customize your Sandbox CPU & RAM
Up to 24-hour sandbox session length
Up to 100 concurrently running sandboxes

Enterprise

Custom solution with special pricing

Calculate your cost View full pricing

How E2B's pricing compares

At $150/mo, E2B is the most premium of its 3 direct competitors.

Hugging Face

Apify

$39

LangChain

$39

E2B

$150

Entry paid plan, monthly. Pricing checked Jun 19, 2026.

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Best E2B Alternatives

Top alternatives based on features, pricing, and user needs.

View full list →

OpenAI APIPaid

Programmatic access to OpenAI's full model lineup: GPT-5.5, o3, gpt-image-1

4.6

CohereFreemium

Enterprise NLP models for text generation, embeddings, and RAG

4.3

ApifyFreemium

Build, run, and scale web scraping and automation workflows

4.7

LangChainFreemium

Build LLM-powered applications

4.7

Hugging FaceFreemium

Open-source AI models, datasets, and tools for collaborative ML

4.9

LlamaIndexFreemium

Data framework for LLM applications

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

All E2B alternatives6+ tools ranked, pricing + verdict per pick E2B vs OpenAI APIHead-to-head: features, pricing, who wins E2B vs CohereHead-to-head: features, pricing, who wins E2B vs ApifyHead-to-head: features, pricing, who wins

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E2B FAQ

What types of AI agents can E2B support?

E2B is designed to support various types of AI agents, including deep research agents, computer use agents, automation agents, background agents, and reinforcement learning agents. It provides an open-source, secure environment with real-world tools for these enterprise-grade agents.

How does E2B facilitate deep research for AI agents?

E2B enables deep research agents to conduct time-consuming research on large datasets. This capability allows AI agents to process and analyze extensive information efficiently.

What are the sandbox session length limitations for different E2B plans?

The Hobby plan offers sandbox session lengths of up to 1 hour, while the Pro plan extends this to up to 24 hours. The Ultimate and Enterprise plans likely offer custom or extended session lengths.

Can I customize the CPU and RAM for my sandbox environment?

Yes, with the Pro plan, users can customize their sandbox CPU and RAM configurations. The Hobby plan uses default settings for these resources.

How is storage handled for E2B sandboxes?

The Hobby plan includes 10 GiB of storage for free, and the Pro plan offers 20 GiB of storage for free. For needs exceeding these amounts, users can inquire about more powerful compute options.

What are the concurrent sandbox limits for E2B plans?

The Hobby plan allows up to 20 concurrently running sandboxes. The Pro plan increases this limit to up to 100 concurrently running sandboxes.

Source: e2b.dev

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