I’ve watched a lot of clients spend the last twelve months stitching together AI tools that don’t talk to each other. A Claude tab here. A ChatGPT tab there. A Copilot tab somewhere in the middle. Then a folder of CSVs they keep dragging in and out of each one.
That’s not a workflow. That’s a tax.
So when Anthropic shipped Claude Cowork and Microsoft shipped Copilot Cowork in roughly the same window, the question landed in my inbox: which one do we tell our clients to use?
I’ll save you the suspense. For an SMB already paying for Microsoft 365, it’s not close.
What is Cowork, really?
Cowork is the bit that does the work, not the bit that talks about it. You give it an outcome — “draft the quarterly update from these meeting notes and send it to the leadership team” — and it goes off and does the thing.
That’s the shared idea. Both products own it. The split is in where the work happens.
Claude Cowork lives on your desktop. You mount a folder, drop your files in, and Claude runs in a sandbox on your machine. It doesn’t see your inbox. It doesn’t see your calendar. It doesn’t see your Teams chats unless you’ve copy-pasted them in. You bring the data to the model.
Copilot Cowork is the inverse. It already lives inside Microsoft 365, grounded in your Outlook, Teams, SharePoint, OneDrive, and calendar through Work IQ. You don’t mount anything. The model is already where your data lives.
Notice what’s missing? The mounting step. The “let me copy this folder over” step. The “hang on, I need to paste in the email thread” step.
For SMBs, that’s the whole game.
Step-by-Step: getting Copilot Cowork going
If you’re licensed for Microsoft 365 Copilot and enrolled in the Frontier preview, the start is short.
Open Cowork in Microsoft 365
Browse to m365.cloud.microsoft, sign in, and pick Cowork from the agent list. If you don’t see it, check Frontier enrolment under Copilot settings.
Describe the outcome
Skip the prompt-engineering nonsense. Talk like a person.
Read my inbox from this week, find anything tagged from a client,
draft a Friday wrap-up email summarising open items, and post a
short version into the Operations channel in Teams.Notice what’s missing? Any reference to a file path. Any “first export your inbox to CSV” step. Cowork already has the inbox, the calendar, the Teams channels, and the SharePoint files. It just needs the instruction.
Approve the action
Cowork shows you exactly what it’s about to send, post, or schedule before it does it. You hit Send, Post, or Cancel. The full flow is in the getting started doc if you want to walk a client through it.
Set the schedule
Want it to do this every Friday at 4pm? Schedule the prompt and walk away. Copilot doesn’t get tired. Use that.
Why this actually changes behaviour
Claude Cowork is a beautifully built tool. For a developer or a data analyst on a Mac with a folder full of CSVs, it sings. I’m not knocking it.
But that’s not the SMB picture. The SMB picture is a bookkeeper, a sales lead and a director who all live inside Outlook and Teams from 8am to 6pm. Their data isn’t in a folder on their desktop. It’s in their mailbox, their channel chats, their SharePoint sites and their meeting transcripts.
“But couldn’t we just pipe our M365 data into Claude?”
You could. You’d be paying twice — once for M365, once for Claude — and you’d be exporting business data into a different vendor’s environment to do work the platform you already own can do natively.
That’s not a productivity gain. That’s a procurement problem.
Here’s the real win. Copilot Cowork sits behind the same Entra identity, the same conditional access, the same Purview labels and the same retention policies your tenant already runs. The governance story is already built. There’s no second tool to license, secure, train, or audit.
My recommendation? If you’re an MSP and you’re not walking your SMB clients through Copilot Cowork, you’re leaving value on the table — theirs and yours.
Meet people where they already are.
Cowork isn’t a second AI app for your clients to learn. It’s the work, finally getting done in the place it was always supposed to happen.
CIAOPS 