On March 9, Microsoft and Anthropic announced something that got buried under the usual tech news cycle. Which is a shame, because it might matter more than most of what made the headlines that week.
It’s called Copilot Cowork. And the short version is: Claude — Anthropic’s AI — now lives inside Microsoft 365.
Not as a chatbot in the sidebar. As an agent that can actually do things across your Outlook, Teams, Excel, Word, and PowerPoint.
What Copilot Cowork Actually Does
You know how regular Microsoft Copilot answers questions about your documents? Copilot Cowork goes further. It executes multi-step tasks across your entire M365 environment.
Here’s the example Microsoft keeps showing: you tell Copilot Cowork to “prepare for the Q2 customer meeting.” It then:
- Pulls last quarter’s financials from Excel
- Builds a presentation in PowerPoint with those numbers
- Drafts a prep summary email to your team
- Schedules 30 minutes of prep time on your calendar
One request. Four apps. Done.
The difference from regular Copilot? Regular Copilot is reactive — you ask a question, it answers. Copilot Cowork is agentic — you describe an outcome, it figures out the steps and works across apps to get there. It shows you its plan, you approve, and it runs.
Sound familiar? That’s because it’s built on the same technology as Anthropic’s Cowork — the desktop agent that gives Claude access to your local files. Same brain, different body.
How It Differs From Anthropic’s Cowork
This is where it gets interesting — and a little confusing. There are now two products with “Cowork” in the name, and they work very differently.
| Feature | Copilot Cowork (Microsoft) | Cowork (Anthropic) |
|---|---|---|
| Where it runs | Cloud (your company’s M365 tenant) | Locally (your desktop, sandboxed VM) |
| What it accesses | Emails, calendar, Teams chats, SharePoint, OneDrive | Local files on your machine + 38+ connectors |
| Data protection | Enterprise M365 compliance, within your tenant | Local sandboxing, excluded from audit logs |
| Target audience | Enterprise teams on M365 | Individual Pro/Max subscribers |
| AI model | Claude + OpenAI models (multi-model) | Claude only |
| Price | $99/user/month (E7 tier) | $20/month (Pro) |
| Available | Research Preview now; E7 from May 1, 2026 | Available now |
The simplest way to think about it: Anthropic’s Cowork is for your local files. Microsoft’s Copilot Cowork is for your work apps.
If you’re an individual or small team, Anthropic’s Cowork is what you want. If your company runs Microsoft 365, Copilot Cowork is the enterprise version of the same idea.
The Pricing Breakdown
Microsoft didn’t make this cheap. But the math is actually more interesting than the sticker price.
Copilot Cowork comes as part of the new M365 E7 “Frontier Suite”, launching May 1, 2026 at $99/user/month.
Here’s what that bundles:
| Component | Standalone Price | What It Does |
|---|---|---|
| M365 E5 | $60/user/month | Full Office + security + compliance |
| Microsoft 365 Copilot | $30/user/month | AI assistant across M365 apps |
| Agent 365 | $15/user/month | Build and deploy custom AI agents |
| Entra Suite | $12/user/month | Identity and access management |
| E7 Total | $99/user/month | Everything above + Copilot Cowork |
| Individual total | $117/user/month | Buying each separately |
So E7 saves you $18/user/month compared to buying everything individually. Not a huge discount, but the real value is getting Copilot Cowork — which you can’t buy standalone.
For comparison: Anthropic’s Cowork on the Pro plan costs $20/month. Five times cheaper, but it doesn’t integrate with your work email, calendar, or Teams.
Agent 365: The Other Thing That Launched
This got lost in the Copilot Cowork hype, but it matters.
Agent 365 ($15/user/month, generally available May 1) is Microsoft’s platform for building custom AI agents inside your organization. Think of it as the DIY version — you create agents that handle specific workflows in your company, like processing expense reports, routing support tickets, or onboarding new employees.
It’s separate from Copilot Cowork. Copilot Cowork is the built-in agent that works across M365. Agent 365 lets you build your own agents.
If your company already uses Power Automate or Power Apps, Agent 365 is the AI-powered evolution of those tools.
Who Should Actually Care About This
You should pay attention if:
- Your company runs Microsoft 365 (E5 or above)
- You spend significant time in Outlook, Teams, and Excel
- You’re in a role that involves cross-app workflows — pulling data from one place, creating documents in another, sending updates to teams
- Your IT department is evaluating AI tools and wants something that stays within the M365 trust boundary
- You’re an admin responsible for AI adoption across your org
You can probably skip this if:
- You’re an individual user or freelancer (Anthropic’s Cowork at $20/mo is better for you)
- Your company uses Google Workspace instead of M365
- You’re a developer (Claude Code is more powerful for coding work — see our Claude Code Mastery course)
- Your company isn’t on E5 yet (you’d need to upgrade to E5 first, then add E7)
When Can You Actually Use It?
Right now (March 2026): Research Preview. Limited enterprise customers only. You need to be invited.
Late March 2026: Broader availability through Microsoft’s “Frontier” program. Still enterprise-focused.
May 1, 2026: General availability of the E7 Frontier Suite. Agent 365 also becomes generally available on this date.
If you want to try Anthropic’s version of this technology today — the one that works on local files rather than M365 apps — that’s Claude Cowork, available right now on the $20/month Pro plan.
The Multi-Model Angle
Here’s a detail that’s easy to miss: Copilot Cowork doesn’t only use Claude.
Microsoft uses both Anthropic and OpenAI models in Copilot. Claude is now available in mainline Copilot chat through the “Frontier” program, but Microsoft can route requests to whichever model it thinks will handle the task best.
This is notable because Microsoft has historically been all-in on OpenAI. Bringing Claude into the mix — and building a headline feature around Anthropic’s technology — signals a shift toward multi-model strategies in the enterprise.
For you as an end user, this means you’re getting the best of both worlds: Claude’s reasoning strength (especially for complex, multi-step tasks) alongside OpenAI’s capabilities for other workloads. You won’t need to choose.
What Google and OpenAI Are Doing
The obvious question: where are the competitors?
Google Workspace has Gemini built in, and it can draft emails, summarize docs, and create presentations. But it doesn’t do multi-step agentic tasks across apps yet. Google’s Mariner agent is Chrome-based and limited to web browsing. Nothing equivalent to Copilot Cowork for Workspace.
OpenAI has Operator for web automation ($200/month Pro plan), but it’s web-only — no desktop file access, no enterprise app integration. ChatGPT Desktop exists but it’s still mostly a chat window with file upload.
Right now, Copilot Cowork is the only enterprise-ready AI agent that works natively across a full office suite. That’s going to change — probably fast — but as of March 2026, Microsoft has a genuine head start.
For a broader comparison of all these tools, see our full Claude Cowork guide.
The Security and Compliance Question
This is where enterprise buyers will either light up or pump the brakes.
The good news: Copilot Cowork runs inside your M365 tenant. Your data stays within Microsoft’s enterprise trust boundary — same data protection, compliance, and governance you already have with M365 E5. It uses Microsoft’s existing Entra identity and access management. Your IT team already knows how to manage this.
The catch: It’s brand new. “Research Preview” means you’re an early adopter. There’s limited documentation, few case studies, and the inevitable rough edges that come with v1 enterprise software.
Contrast this with Anthropic’s Cowork, where the data stays on your local machine (great for privacy) but is explicitly excluded from Audit Logs, Compliance API, and Data Exports. For regulated industries, Copilot Cowork’s M365 compliance model is a meaningful advantage.
Should You Wait or Act?
If your company is on M365 E5 and already paying for Copilot ($30/user/month), the jump to E7 is $69/user/month more — or $39/user/month if you also need Entra and Agent 365 anyway.
The question is whether agentic AI across your office apps is worth that premium today, or whether you should wait 6-12 months for the product to mature.
My take: if your workflows involve a lot of cross-app busywork — pulling numbers from spreadsheets into decks, drafting follow-up emails after meetings, prepping materials for recurring reviews — Copilot Cowork could save hours per week per person. At $99/user/month, one saved hour per week pays for itself.
But if your team is mostly in one or two apps, regular Copilot is probably enough for now.
The Bottom Line
Copilot Cowork is Anthropic’s local desktop agent, reimagined for the enterprise M365 world. Same multi-step reasoning, same agentic task execution — but integrated with your work email, calendar, Teams, and documents instead of local files.
It’s not cheap. It’s not broadly available yet. And it’s competing with a $20/month alternative from Anthropic that you can use today.
But for companies already deep in the Microsoft ecosystem, it could be the most natural way to bring AI agents into daily work — no new apps, no new logins, no behavior change. Just Copilot, doing more.
E7 launches May 1. Mark your calendar. Or better yet, tell Copilot Cowork to do it for you.
Related Articles
- Claude Cowork Guide 2026: Skills, Plugins, Connectors & Setup Tips — The complete guide to Anthropic’s local desktop agent, including how to add skills, set up plugins, and connect 38+ apps.
- AI Agents Explained: How They Work and Why They Matter — The technology behind Cowork, Operator, and the next wave of AI tools.
- Claude vs ChatGPT for Coding: 10 Real Tasks Tested Side-by-Side — How Claude and ChatGPT compare on actual coding work.
- ChatGPT vs Claude vs Gemini: 10 Tasks Tested, Clear Winner per Category — The full three-way comparison across coding, writing, and analysis.
- How to Build an AI Automation Agency in 2026 — If you’re thinking about offering AI automation as a service.
Sources:
- Copilot Cowork: A New Way of Getting Work Done | Microsoft 365 Blog
- Introducing the First Frontier Suite Built on Intelligence + Trust | Microsoft
- Microsoft Debuts Copilot Cowork Built With Anthropic’s Help | Fortune
- Microsoft’s Copilot Cowork Integrates Anthropic’s Claude | GeekWire
- Microsoft Announces Copilot Cowork With Help From Anthropic | VentureBeat
- Claude Cowork Guide | FindSkill.ai
- Anthropic Updates Claude Cowork Tool | CNBC