Microsoft’s New Copilot: An Always-On Agent and Pay-per-Use Billing

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On September 25, Microsoft fundamentally reorganized its Copilot app: chat, coding, and always-on agents now live in one application, with Word, Excel, and PowerPoint running directly inside it. The new pricing model matters at least as much as the new features. Anyone who uses Copilot only for everyday office work keeps paying a flat per-user fee, while demanding agent work will be billed by usage. For companies running Microsoft 365, that changes the math, and it shows where AI subscriptions as a whole are heading.

Key takeaways

  • The Copilot app is split into three areas: Home combines chat and the work agent Cowork, Code builds apps and dashboards from plain language, and Autopilot is an always-on agent with its own identity.
  • The user license will cover chat and Copilot in Word, Excel, PowerPoint, Outlook, and Teams. Cowork, Code, Autopilot, and the newest frontier models Astra and Fable run on Copilot Credits, billed by usage.
  • In organizations, the usage-based services start out switched off until an admin creates a spending policy. Nothing is billed before that.
  • Autopilot enters private preview at the end of September, and Home and Code arrive in the coming weeks through Microsoft’s early-access Frontier program. A preview of Code for consumers with Microsoft 365 Premium has been announced for later this year.

Three areas instead of one chat box

Home is the new starting point. It brings together classic chat for quick questions and drafts with Cowork, an agent for delegated work that runs from start to finish. Microsoft’s examples include an RFP response, a customer briefing, and the package for a month-end close. In the future, Copilot is supposed to decide on its own whether a request belongs in chat, Cowork, or Code. Word, Excel, and PowerPoint are fully built in: the output is real, editable files that colleagues can keep working on at the same time in the regular Office apps. Microsoft is also announcing an overview called Today that pulls together mail, calendar, Teams messages, and tasks and drafts responses. It enters private preview in October.

Code is explicitly not just for developers. Anyone who needs a small app, a dashboard, a tracker, or an automation describes it in everyday language, and Copilot builds it. Under the hood, Microsoft says, it uses the same technology as GitHub Copilot. The results run in a sandbox and can be hosted and shared with the team inside the company’s own Microsoft 365 environment. Microsoft continues to point professional developers to GitHub Copilot.

Autopilot, previously known as Scout, is the most ambitious piece. You give the agent a name, a role, and a goal, and it keeps working in the cloud even when nobody is at a computer anymore. It watches Teams channels, follows up on open threads, handles recurring tasks, and picks projects back up on its own days later. According to Microsoft, it lives in the company’s environment with its own identity, memory, computer, and workspace, can be reached via @mention in Teams and Outlook, and runs with permissions and auditing in the background. GeekWire reports that Autopilot grew out of experiments with the open-source agent OpenClaw. In the demo, an Autopilot named Dot, tasked with keeping stores stocked ahead of Black Friday, flagged a supply problem that could affect 18 stores.

Battery and gas tank: the new pricing model

Microsoft itself describes the new billing with the image of a plug-in hybrid. The user license is the battery for everyday driving, and credits are the gas tank for longer trips. The license continues to include chat, Copilot in the Office apps, and an automatic mode that picks the model and reasoning effort for each request based on accuracy, speed, and cost. According to Microsoft’s pricing post, GPT-5.6 and Sonnet 5 are included, and newer models such as Opus 5 are included with usage limits. Anyone who hits a limit gets a warning and can switch to auto mode for free or move to credits.

Everything more demanding runs on credits: Cowork, Code, Autopilot, new features in apps such as SharePoint, and the newest frontier models, which Microsoft calls Astra and Fable, meaning the current top models from OpenAI and Anthropic. Microsoft’s announcements do not give a price per credit or any included allowances. What is clear is the control layer: admins set budgets for the whole organization, for individual groups, and per user, decide which model families are available to whom, and can assign costs to specific Azure subscriptions. Employees can see their own usage and remaining balance.

According to Jared Spataro, Microsoft’s chief marketing officer for AI at Work, there are simply two kinds of AI at work, and they call for two very different ways of paying. Satya Nadella had already told investors in July that the business is moving from pure per-seat licenses toward per-seat plus consumption. Users now know that pattern from competitors as well, for example from the tiered Claude plans with their usage allowances.

Who stands to benefit

The biggest change is for companies that have barely used Copilot beyond chat. Code can give business teams tools they previously had to file an IT ticket for: a dashboard for sales numbers, a tracker for vacation requests, a small automation for recurring reports. Autopilot targets coordination work that today gets lost in follow-up emails and reminders. Because the usage-based services are off by default, IT can start small, for example with a pilot group and a fixed monthly budget, and watch the costs before rolling anything out more widely.

Anyone who wants to try it will need some patience. Most features reach companies in the Frontier program first, and Autopilot is available only as a closed preview. Microsoft’s announcements do not say whether or when the new features will be available in Germany and the EU. Consumers with Microsoft 365 Premium are due to get a preview of Code later this year, and according to Spataro, usage-based billing for Cowork and Code will follow later as well. Microsoft plans to share more details at its Ignite conference from November 17 to 20.

Analysis: Microsoft is selling control, not just models

The overhaul is also a response to pressure. Anthropic and OpenAI have long bundled chat, coding, and agents in their own apps and sell them directly to Microsoft’s core customers, most recently with Anthropic’s unified Claude app with Cowork. According to GeekWire, Microsoft had more than 30 million paid Copilot seats in July, which against more than 450 million commercial Microsoft 365 seats is only about 7 percent. Microsoft’s argument against the competition is therefore less about having the best model, since it partly buys its models from those very competitors. It is about management: agents with their own identity inside the company’s own tenant, budgets per group, model choice by policy. Copilot chief Jacob Andreou summed up the dilemma himself when he said that the autonomy and flexibility that make a great long-running agent are exactly what make it terrifying to an IT admin.

Whether the math works out depends on a number Microsoft has yet to share: the price per credit. Only once it is clear what an hour of Autopilot or a dashboard built with Code actually costs can anyone judge whether the digital colleague is cheaper than the work it takes over. Until then, the smartest move for companies is a limited test with a fixed budget, because the new model makes AI costs as plannable as any other cloud bill for the first time, but also just as variable.

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