OpenAI Agents API Enters Public Beta as E2B Ships Hosted Sandbox Workbench Demo

OpenAIDevs · x · 2026-09-12

OpenAI's developer account announced the Agents API in public beta: build and run cloud agents on a fully managed Codex harness, with OpenAI handling orchestration, long-running sessions, and context management.

E2B demoed an agent workbench on top of it: each chat runs on its own isolated sandbox machine with its own filesystem and preinstalled tools. It supports auto-pausing between turns, forking to try alternative approaches from the same starting point, and even acting on videos inside the sandbox. E2B offers a one-line template (e2b sbx create openai-agents-api-python-sdk), and the full-stack workbench (Flask backend + React frontend, wired via an OpenAPI spec) is open-sourced on GitHub.

Related event: OpenAI Launches Agents API Public Beta, Opening the Codex Harness with Managed Sandboxes(16 posts)→

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