Dive into the biggest news from Microsoft Build and learn how to start building with it today 👇

Joined February 2013
You have an idea. Now take it beyond the scoreline. ​ Build something that changes how football is understood, told, or experienced with AI.
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Register by Oct. 20. Submit by Oct. 27: events.microsoft.com/flow/mi…
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Knowing when to use AI and when to question its output is part of learning to build. Watch @shanselman, software engineer Julia Gao, and CMU’s Dr. Michael Hilton discuss PRAISE and how to support the next generation of developers. youtube.com/watch?v=BglzGRnH…
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What will the next generation of developers do when AI writes the code? Microsoft and @CarnegieMellon are betting on junior developers. PRAISE pairs them with senior mentors to build with AI and grow into tomorrow’s senior engineers. commandline.microsoft.com/pr…
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Keep building your skills and connect with other developers. Here are a few upcoming events, community sessions, and training opportunities to keep on your radar from Microsoft Reactor 🧵
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Microsoft Developer retweeted
Microsoft-Decision-1 is live on OpenRouter. Microsoft's numbers: highest accuracy across 36 blind benchmarks (~150K questions), 4.5x faster than the runner-up, 35x faster than GPT-6 Sol, and decisions flip on just 1.3% of perturbed inputs. Post-trained from Qwen3.5-9B. $0.042/M input, output free, 32K context openrouter.ai/microsoft/micr…
Introducing Microsoft-Decision-1, our new model for fast decision-making. It delivers top performance on structured decision tasks, outperforming both LLMs and other decision models in latency and quality. We’re already testing it across Microsoft for everything from incident response and quality control to scientific discovery.
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Introducing Microsoft-Decision-1 Our model for fast decision-making that delivers top performance in latency and quality on structured decision tasks to outperform both LLMs and other decision models. commandline.microsoft.com/mi…
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Classification is a key use case for decision models. Check out how accurately and quickly Microsoft-Decision-1 can categorize a variety of queries compared to GPT-6 Sol.
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This is our first release in this new class of decision models, and we will continue to release updates including versions built on @MicrosoftAI and OpenAI models in the future. Get started with Microsoft-Decision-1 today in Microsoft Foundry and soon through OpenRouter. aka.ms/decision-1
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The challenge starts now. Build an AI-powered solution that turns synthetic football data into match intelligence, narratives, recaps, or personalized fan experiences. Register by Oct. 20. Submit by Oct. 27: msft.it/6018aUKYq
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Today, we announced the next step in the Project HydraFusion vision: local models and intelligent routing for GitHub Copilot on Windows. @cinnamon_msft shows what this can mean for your everyday coding workflows.
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Microsoft Developer retweeted
📣 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.
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