Azure Sets Record for Fastest Large‑Scale AI Training
New Azure milestone. The fastest time to train yet at the largest reported scale for this leading AI training benchmark. A great example of what is possible when we bring together full-stack innovation across silicon, systems, networking, and software, along with our deep partnership with @nvidia, to advance the frontier of AI infra. https://t.co/5ADybErndz
AI Uncovers Cell States for Personalized Cancer Treatment
Today in @naturemethods, we shared research on how AI can help us better understand cell behavior, offering new insights into why cancer medicines do not work the same for everyone. By learning more about cell state — how individual cancer cells...
New MAI Models Enable Companies to Join Frontier AI
With the new MAI models and Frontier Tuning capabilities we announced today, we're focused on helping every company move from just consuming a frontier model to fully participating at the frontier. https://t.co/GJwGCypRfj
Excel Evolves From Turing‑complete to AI‑complete Spreadsheet
Excel has quietly been Turing complete for a long time. Nice to see it now edging toward "AI complete"—SGD, attention, next-token prediction… all in cells.
GPT‑5.5 Instant Boosts M365 Copilot Speed and Accuracy
Great to bring GPT 5.5 Instant to M365 Copilot today. With quicker, clearer, and more accurate responses, you can get to useful answers with less back and forth. Also rolling out to Copilot Studio and Foundry. All part of our focus on...
Redesign Work: AI Agents Boost Human Agency
Every firm will need to reconceptualize work as they build agentic systems. As AI and agents take on more of the execution, the opportunity is to expand human agency and redesign how work gets done. An in-depth look from the team at...
Copilot's Rapid Improvements Shine in Excel
We’ll take it 😊 Copilot is getting better fast, and Excel is one of the best places to see that. More to come…
AI Revenue Hits $37B, Signals Agentic Computing Shift
Just wrapped our quarterly earnings call. We are focused on delivering AI infrastructure and solutions that empower every business to eval-max their outcomes in this agentic computing era. Our AI business surpassed a $37 billion annual revenue run rate, up...
Foundry Powers Durable, Stateful Agents for Continuous Workflows
Great example of what Foundry enables: durable, stateful agents that run across time boundaries, orchestrate tools and models, and close the loop with evaluation and improvement over long-running workflows. @jeffhollan https://t.co/v0yWTDIcn3
GPT‑5.5 Boosts Copilot with Faster, Smarter Execution
Super excited GPT-5.5 is rolling out to GitHub Copilot, M365 Copilot, Copilot Studio, and Foundry today. With deeper reasoning, stronger multistep execution, and better performance across long, complex tasks, GPT-5.5 helps you go from idea to execution faster with fewer iterations...
Agent Mode Turns Classic Excel Ad Smarter
To mark the broad rollout of Agent Mode in Copilot, we had some fun recreating an iconic 90s Excel ad: same ad, smarter Excel. https://t.co/RffEKccC2Q

Australia Receives Record A$25 Bn AI and Cloud Investment
Thanks to Prime Minister @AlboMP for the warm welcome today. We are making our largest investment in Australia to date, committing A$25 billion to expand AI and cloud capacity, strengthen cybersecurity, and help people and organizations across the country build digital...
Copilot’s Agent Mode Now Default Across Office Suite
We're making a big change to the Copilot experience. Agent Mode is generally available and now the default across Copilot in Word, Excel, and PowerPoint. As models become more capable, we’re bringing that power to where real work happens, right in the...

Hosted Agents Get Dedicated Enterprise‑grade Sandboxes
Every agent will need its own computer. And with new Hosted agents in Foundry, every agent gets its own dedicated enterprise-grade sandbox, with durable state, built-in identity and governance, and support for any harness or framework. Read more: https://t.co/zL5eKrRr1j https://t.co/ggMtYB3vZf
AI Empowers Engineers with Faster Access to NZ Geotech Data
Great to meet with @BecaGroup in Auckland and see how they are using Azure, Foundry, and their BEYON platform to make the New Zealand Geotechnical Database more accessible and useful. It is a powerful example of AI helping engineers access critical...