OpenAI ships new MXC-based sandbox mode for Codex on Windows with stricter controls
OpenAIDevs · x · 2026-10-09
OpenAI's developer account announced a new sandbox mode for Codex on Windows, built on Microsoft's Execution Containers (MXC).
- Faster setup
- Stronger network enforcement
- Granular file access controls
Requires a compatible Windows 11 device; full docs are live on ChatGPT Learn.
Related event: OpenAI Ships New MXC-Based Sandbox Mode for Codex on Windows(2 posts)→
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