I want to share what we know so far. This was not a cyberattack or an issue caused by AI tooling. Our amazing team was able to work through a very challenging situation to restore service. Our investigation points to technical challenges and failure modes (cascading failures + thundering herds at our network perimeter) that made recovery more difficult than normal. I'm working closely with the engineering team to complete the full post-mortem. We will publish the post-mortem shortly covering the step-by-step timeline and our many repair items to avoid similar outages in the future. We take our responsibility to our customers seriously and will do everything we can to learn from this and prevent it going forward.

There isn’t one model that’s best at everything anymore. Choosing the right one for each task (without sacrificing quality or paying more than you need to) is a hard engineering problem. That’s what we’re working on with Auto in Copilot. Today, more than 90% of Copilot queries use Auto to dynamically route work across models and optimize for quality, speed, and cost. In this video, I share how it works and chooses the right model for the job...

People increasingly want to hand off more work to AI and turn their ideas into automations or apps. That shaped what we’re building with Copilot. Autopilot and Managed Apps in Code / Cowork have been two of my favorites to use internally these past couple of months. You can give Autopilot a role and a goal and it keeps working across days or weeks. Mine is named Apollo. :) And when you want to build an app with Copilot, Managed Apps let you share it with your team. More here:

Our goal is to deliver the latest frontier AI models to customers the moment they’re ready. Today, I’m excited to share that OpenAI’s GPT-6 Astra is available on day one across Microsoft Copilot, Copilot Studio, GitHub Copilot, and Microsoft Foundry. Astra represents an important step forward in the kind of complex, multi-step work AI helps people accomplish. As models continue to improve, people are moving from using AI for individual tasks to delegating larger pieces of work. Astra can complete long running and highly complex tasks in a way we haven’t seen before. At Microsoft, we’re bringing those capabilities into the products and workflows our customers already use every day. Astra is paired with Work IQ in Microsoft Copilot to ground intelligence in an organization’s files, meetings, chats, and business data. Looking forward to seeing what customers build with it. Read more in the blog:

Copilot Cowork is now generally available! Over the last few months of preview in Frontier, we’ve seen you use Cowork to help with so many different tasks. We’ve also been listening closely to your feedback and with GA, we’re bringing you more improvements + new features across model choice, extensibility through plugins, browser automation, and cost management controls. Here’s a quick demo showing the latest updates in action - inspired by some of my own day-to-day tasks. You can also read more in the blog linked below...

In the last month, people have been using Copilot Cowork to do amazing things – from building inbox workflows to sales campaigns. And I’m excited to share three big updates to help you accomplish even more: 1) mobile on iOS and Android so you can delegate work from anywhere, 2) skills to help you reuse and scale how work is done and 3) new plugins + connectors to bring your data into the flow of work. I’ve been testing these updates out – here’s a quick demo of how I’ve been using mobile in my daily work.