Microsoft introduced new platform capabilities and tools at Build 2025, focusing on advancing Windows for AI development.
Windows is positioned as an open platform empowering developers with flexibility to leverage AI across software, silicon, and hardware.
The Windows AI Foundry offers capabilities supporting the AI developer lifecycle, including model selection, fine-tuning, and deployment across client and cloud.
Windows ML serves as the foundation of the AI platform, enabling developers to deploy models efficiently across various silicon partners.
Windows AI Foundry integrates Foundry Local and model catalogs like Ollama and NVIDIA NIMs, providing access to open-source models on diverse Windows silicon.
New Windows 11 features include Model Context Protocol (MCP) support, App Actions for developers, and security enhancements like VBS Enclave SDK and post-quantum cryptography.
Windows Subsystem for Linux (WSL) has been open-sourced, offering a seamless integration of Linux into Windows for cross-platform development.
Improvements to popular Windows Developer tools like WinGet, PowerToys, and Terminal aim to enhance developer productivity.
The Microsoft Store now offers free developer registration, App Campaigns, and new analytic reports to help app developers grow user acquisition, discovery, and engagement on Windows.
Windows AI Foundry democratizes AI development, offering ready-to-use APIs, tools to customize models, and a high-performance inference runtime for deploying models across silicon.
The introduction of semantic search, LoRA support for Phi Silica, and expansion of Windows ecosystem with MCP illustrates Microsoft's commitment to empowering developers for an AI-driven future.