Claude Cowork vs Copilot Cowork: Which Should You Use?
Claude Cowork and Copilot Cowork are both "cowork" agents: you describe an outcome and the AI executes a complete, multi-step task instead of answering one prompt at a time. The big difference is where they work. Claude Cowork acts on files on your computer; Copilot Cowork acts on your data inside Microsoft 365. That single distinction drives almost everything else.
Short version: choose Claude Cowork if you work with local files and want a flat, predictable subscription. Choose Copilot Cowork if your organization lives in Microsoft 365 and wants governed, pay-per-use AI across your cloud data. Many teams will end up using both.
What each one is
Claude Cowork (by Anthropic) is a mode in the Claude desktop app for macOS and Windows. You point it at a folder on your computer, and it reads, edits, and creates files in that folder. It's included with paid Claude plans (Pro, Max, Team, Enterprise).
Copilot Cowork (by Microsoft) is an agentic capability inside Microsoft 365, generally available since June 16, 2026. It's cloud-hosted and works across your Outlook, Teams, Word, Excel, PowerPoint, and SharePoint data. It needs a Microsoft 365 Copilot license and is billed by usage.
Side-by-side comparison
| Claude Cowork | Copilot Cowork | |
|---|---|---|
| Maker | Anthropic | Microsoft |
| Where it runs | Desktop app (macOS, Windows) | Cloud, inside Microsoft 365 |
| Works with | Local files in a folder you choose | Your Microsoft 365 data (Outlook, Teams, Word, Excel, PowerPoint, SharePoint) plus the web via Edge (preview) |
| Pricing | Included in paid Claude plans (flat) | Usage-based: Copilot Credits at $0.01 each, plus a Microsoft 365 Copilot license |
| Getting access | Download the app + paid plan | Admin enables it (off by default) + license |
| Underlying models | Claude (Opus, Sonnet) | Anthropic Opus 4.8 and Sonnet 4.6, plus Cowork 1 (GPT-5.5 for Frontier) |
| Plugins | Yes (Business, Technical, Finance, Integrations) | Yes (Microsoft and partner plugins) |
| Governance | Your plan's controls; access scoped to the chosen folder | Enterprise: Microsoft Purview, admin spend limits, the Microsoft 365 trust boundary |
| Best for | Individuals and teams working with local files | Organizations standardized on Microsoft 365 |
Pricing: flat subscription vs pay-per-task
This is the sharpest practical difference. Claude Cowork is part of a flat Claude subscription, so the cost is predictable no matter how much you use it. Copilot Cowork is usage-based: you pay per task in Copilot Credits ($0.01 each) on top of a Microsoft 365 Copilot license, so cost scales with how much work you delegate. We break the Copilot model down in our Copilot Cowork pricing guide.
In its launch announcement, Microsoft claimed Copilot Cowork averaged 30 to 40 percent cheaper than Claude Cowork with the Microsoft 365 connector in its own testing. Treat that as a vendor benchmark, not an independent result. Which is actually cheaper for you depends on your task volume: heavy, frequent use can favor a flat subscription, while occasional use can favor pay-per-task.
Where your data lives
Claude Cowork works locally. It can only see the folder you point it at, which keeps the scope tight and the data on your machine. Copilot Cowork works in the cloud, grounded in your Microsoft 365 content and governed inside Microsoft's enterprise trust boundary with tools like Purview, audit logging, and data loss prevention. If your priority is local control, Claude's model is simpler; if it's enterprise governance over cloud work data, Copilot's is deeper.
The model twist most comparisons miss
It's easy to assume "Claude Cowork = Claude models, Copilot Cowork = Microsoft models." Not quite. Copilot Cowork actually runs on Anthropic's Opus 4.8 and Sonnet 4.6 (alongside its own cost-optimized Cowork 1 and, for Frontier customers, GPT-5.5). So in both products you may be working with Anthropic models. The real difference isn't always the brain, it's the platform around it and the data it can reach.
Choose Claude Cowork if...
- You mostly work with files on your computer rather than in Microsoft 365.
- You want a flat, predictable cost instead of per-task billing.
- You're an individual or small team and don't need enterprise admin controls.
- You're not standardized on Microsoft 365, or you use a mix of tools.
Choose Copilot Cowork if...
- Your work lives in Microsoft 365 (Outlook, Teams, SharePoint, Office).
- You want the agent grounded in your business data across those apps.
- You need enterprise governance - spend limits, Purview, audit, the M365 trust boundary.
- You're fine with usage-based billing that scales with how much you delegate.
The bottom line
This is less "which is better" and more "where do you work." If your tasks revolve around local files and you want predictable cost, Claude Cowork is the natural fit. If your organization runs on Microsoft 365 and values governance and pay-per-use, Copilot Cowork is built for exactly that. They overlap in what they can do, but they're optimized for different homes, and plenty of organizations will use both.
Frequently asked questions
Is Copilot Cowork the same as Claude Cowork?
No. They're separate products from different makers (Microsoft and Anthropic) built for different platforms: Copilot Cowork works inside Microsoft 365, while Claude Cowork works with local files in the Claude desktop app. Both let you delegate complete, multi-step tasks to AI.
Does Copilot Cowork use Claude?
Yes. At general availability, Copilot Cowork runs on Anthropic's Opus 4.8 and Sonnet 4.6 models, alongside a cost-optimized Cowork 1 model (and GPT-5.5 for Frontier customers). So you can be using Anthropic models in both products.
Which is cheaper, Claude Cowork or Copilot Cowork?
They use different pricing models, so it depends on usage. Claude Cowork is included in a flat Claude subscription, while Copilot Cowork bills per task in Copilot Credits ($0.01 each) plus a Microsoft 365 Copilot license. Microsoft claims Copilot Cowork averaged 30 to 40 percent cheaper in its own testing, but that is a vendor benchmark.
Can I use both Claude Cowork and Copilot Cowork?
Yes. They serve different workflows. Many people use Copilot Cowork for work that lives in Microsoft 365 and Claude Cowork for tasks involving local files, so the two can complement each other.
Which should a company on Microsoft 365 use?
Organizations standardized on Microsoft 365 will usually find Copilot Cowork the better fit, because it works natively across their Microsoft 365 data and comes with enterprise governance. Claude Cowork can still be useful for individuals working with local files.