Microsoft released Decision-1 on 9 Oct 2026: a small model that returns a probability per answer option for routing and classification, on Foundry and OpenRouter.
Microsoft describes MXC as a sandbox for running untrusted code, including model output and plugins, on Windows, Linux and macOS with policy controls over filesystem and network. MIT licensed.
Why it matters Agents that run code need a box; a vendor-maintained one with a permissive licence is worth evaluating before building your own.