Microsoft's annual Build developer conference kicked off today in San Francisco, and for small businesses that live inside Microsoft 365, the headline is worth paying attention to.
The company is announcing a unified Copilot "super app" that combines its previously scattered AI tools into a single interface, along with its first homegrown reasoning model. Neither product is shipping today, but both signal a meaningful shift in how Microsoft plans to compete for your AI budget.
The Copilot Fragmentation Problem Is Getting Fixed
If you have ever tried to figure out which version of Copilot you need, you already understand the problem. Microsoft has deployed Copilot under several different names and products: Copilot Chat, GitHub Copilot for coding, Copilot Cowork inside Microsoft 365 apps, and now an agentic capability internally called Autopilot.
According to reporting by Fortune, Microsoft has been building a super app under the internal slogan "Delivering one Copilot." The plan is to unify all of those tools into a single destination, with a toggle to switch between personal and enterprise Microsoft 365 accounts. The project is being led by Jacob Andreou, Microsoft's recently appointed head of Copilot.
The rollout timeline is end of summer 2026. Nothing is available to use today, and Microsoft is expected only to reference the app at Build rather than demo it.
For context on why this matters: right now, fewer than 4.5 percent of Microsoft 365's 450 million customers pay for any Copilot features, per Fortune's reporting. Microsoft needs this to change. A single coherent product instead of a confusing lineup is part of how they plan to move that number.
Microsoft's First Reasoning Model: MAI-Thinking-1
The second major announcement for businesses is MAI-Thinking-1, Microsoft's first in-house reasoning model. According to The Verge, this model was not trained through distillation, meaning it was not built by learning from another AI company's outputs. Microsoft is building this capability from scratch.
MAI-Thinking-1 is expected to target enterprise use initially. Reasoning models, like OpenAI's o3 and Google's Gemini 2.5 Pro, are designed to spend more time working through complex, multi-step problems before responding. For business tasks like financial analysis, contract review, or multi-variable decision-making, that extra processing can produce notably more accurate results than a standard model.
Microsoft AI chief Mustafa Suleyman is expected to unveil MAI-Thinking-1 at today's keynote, which begins at 12:30 PM ET.
Microsoft is also expected to announce MAI-Image-2.5 and MAI-Image-2.5-Flash, new image generation models that Suleyman teased last week. These follow the company's earlier MAI-Image-2 release.
Local AI Models: A Potential Cost Reduction
One Build announcement that has received less attention but matters for small businesses is Microsoft's push toward local AI models running directly on Windows devices, without sending data to the cloud.
According to The Verge's pre-conference reporting, Microsoft will reveal a stronger focus on local models at Build this year. The framing is straightforward: local compute is cheaper than cloud compute for many workloads. If Microsoft can let your business run lighter AI tasks on the machine sitting on your desk rather than billing you per API call, that changes the economics for routine daily use.
This is especially relevant for businesses that handle sensitive client data and have been reluctant to push that information to cloud-based AI services.
What You Should Actually Do Right Now
None of these products are shipping today. Here is how to use this information practically.
If you are currently paying for Microsoft 365 and have not turned on Copilot features, log into your admin center and review what your subscription already includes. Many business subscribers have Copilot entitlements they have never activated.
If you are evaluating AI tools for your team this summer and considering separate subscriptions to GitHub Copilot, a chat assistant, and an automation tool, it is worth waiting to see what the unified super app looks like before locking into separate annual commitments. Microsoft is targeting a late summer launch.
If you manage a development team, the MAI-Thinking-1 reasoning model is worth watching. Microsoft's stated goal is enterprise reasoning capability without the reliance on OpenAI's model pricing. Whether it competes with o3 or Gemini 2.5 Pro on benchmark quality is something to evaluate when it ships.
Microsoft has been playing catch-up in AI since losing its early lead following its OpenAI partnership. Build 2026 is the company making the case that it is still in the race. For small businesses, the more concrete question is whether a simpler, unified Copilot will finally justify the subscription price. We will know more by fall.
Sources: The Verge (Microsoft Build 2026 preview), Fortune (Copilot super app reporting)