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📣 Coming soon to GitHub Copilot: intelligent local model routing. We are excited to announce the next step in our Project HydraFusion vision. GitHub Copilot will soon be able to automatically route tasks to a local model when it's most suitable, helping you save on AI credits.

Built-in file tools run in-process in Copilot CLI. `/sandbox enable` is off by default; cloud still public preview with `copilot --cloud --experimental`. The OS sandbox never sees those writes; they check policy in software, best-effort.

Microsoft reports 75.5GB peak memory for MAI Code at 256k context. I'd judge local routing on completed tasks under memory pressure; a model fitting at startup says little about a long coding session.