Beyond Microsoft 365
Milo works on WhatsApp and iMessage, and in Slack, Microsoft Teams and Google Chat, with Google and Microsoft accounts alike. Copilot is built around Microsoft 365.
Microsoft 365 Copilot brings AI into Outlook, Teams, Word, Excel and PowerPoint as an add-on. Milo is an AI teammate you message on WhatsApp, iMessage, Slack, Microsoft Teams or Google Chat, and it works on websites too.
Start free. No card needed.
Choose Microsoft 365 Copilot if your company runs on Microsoft 365 and wants AI inside Outlook, Teams, Word, Excel and PowerPoint, managed by IT.
Choose Milo if your work also happens outside Microsoft 365, in WhatsApp, Slack, Google apps or on websites, and you want one teammate for $49, $99 or $199 per person a month with no extra license.
| Question | Milo | Microsoft 365 Copilot |
|---|---|---|
| Where you work with it | Web, Mac and Windows apps, WhatsApp, iMessage, Slack, Microsoft Teams and Google Chat. | Outlook, Teams, Word, Excel and PowerPoint, the Copilot app on the web, Windows, Mac and phones, and Edge. |
| Text it on WhatsApp or iMessage | Yes.Yes. Text Milo like a teammate on WhatsApp or iMessage. | No.No. No WhatsApp or iMessage channel is documented; Microsoft’s consumer Copilot left WhatsApp in January 2026. |
| Works in Slack, Teams and Google Chat | Yes.Yes. Mention @Milo in a channel or space to hand it a task; it answers there with the sources it can access. | Partly.Microsoft Teams, yes. No first-party Slack or Google Chat app. |
| Does the work on websites | Yes.Yes. Its own computer in the cloud, plus your Chrome or Mac when a task needs them. | Partly.Copilot Cowork can use Edge on your own computer once an admin turns it on. A cloud agent, Autopilot, is in private preview. |
| Connects to your apps | Yes.Gmail, Outlook, Google Calendar, Drive, Notion, HubSpot, Salesforce and 40+ more, plus your own apps through MCP. | Yes.Your Microsoft 365 data plus more than 100 prebuilt connectors, such as Salesforce and ServiceNow; MCP through Copilot Studio. |
| Keeps working on goals over time | Yes.Yes. Recurring work and ongoing goals that it follows through. | Yes.Cowork runs scheduled tasks and tasks triggered by email or Teams messages, preparing actions for your approval. |
| Remembers you | Yes.Yes. It learns your preferences and the details you would otherwise repeat. | Yes.Yes. Copilot Memory learns your style and preferences. |
| Buys things with your approval | Yes.Yes. Saved logins and cards stay in Vault, and Milo asks before it pays. | No.No checkout in Microsoft 365 Copilot. A checkout feature exists only in the US consumer Copilot. |
| Price | Free to start, no card. Then $49, $99 or $199 per person a month. | Copilot Chat comes with eligible Microsoft 365 plans. The Copilot add-on is $21 per user a month for business (list price; $18 on a promotion through 2026) or $30 for enterprise, billed annually; agent work such as Cowork is billed in credits. |
Checked on November 5, 2026, against each company’s public product, pricing and help pages. Product features and prices change; the sources are listed below.
Milo works on WhatsApp and iMessage, and in Slack, Microsoft Teams and Google Chat, with Google and Microsoft accounts alike. Copilot is built around Microsoft 365.
Milo’s own cloud computer works on websites from the start. Copilot Cowork’s browser work runs in Edge on your computer after an admin enables it, hosted browsers need a custom agent in Copilot Studio, and the Autopilot cloud agent is in private preview.
Milo is $49, $99 or $199 per person a month, with no other license needed. Copilot is an add-on to a Microsoft 365 plan, and its agent work is billed in credits on top.
Yes, especially if your team also works outside Microsoft 365: Milo works on WhatsApp and iMessage, in Slack, Microsoft Teams and Google Chat, and on websites with its own cloud computer. Copilot is the natural pick inside a Microsoft 365 company.
No. Microsoft said its consumer Copilot would stop working on WhatsApp on January 15, 2026, and no WhatsApp channel is documented for Microsoft 365 Copilot. Milo works on WhatsApp and iMessage.
Milo starts free with no card, then costs $49, $99 or $199 per person a month. Microsoft 365 Copilot is an add-on to a Microsoft 365 plan: $21 per user a month for business at list price or $30 for enterprise, billed annually, with agent work billed in credits.
Yes. Milo works in Microsoft Teams where your team’s installation is enabled, and it connects to Outlook and your Microsoft calendar and files.
It works in the apps and chats you already use, and follows through.