Microsoft announced local AI model support for GitHub Copilot by end of October 2026. The new MAI Code1.1Flash MoE model features 137B parameters and 6.8B active parameters, using quantization and speculative decoding to reduce memory usage and boost edge inference speed. Integrated with NVIDIA RTX Spark on Surface Laptop Ultra, users can switch between cloud and local models via CLI, Copilot app, or VS Code. This hybrid cloud-edge architecture enhances privacy, reduces latency, and improves security through Microsoft Executable Container isolation, marking a shift from pure cloud dependency to flexible local deployment for developers.