E2B is a versatile open-source runtime designed specifically for AI developers and engineers, enabling secure execution of AI-generated code within isolated cloud sandboxes. It supports multiple programming languages, including Python and JavaScript, and offers SDKs for seamless integration into various AI applications. E2B employs Firecracker microVMs to provide robust security and isolation, ensuring that dynamic code snippets are executed in a controlled environment.

The platform is LLM-agnostic, making it compatible with a variety of large language models such as OpenAI and Llama. Key features of E2B include rapid sandbox initialization, customizable execution environments, and support for long-running sessions of up to 24 hours. E2B can be deployed within an organization's infrastructure or used through the provided cloud service, catering to diverse users from small businesses to enterprises.