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The Stack / Chat Assistants
Microsoft Copilot
02 DecisionsYes if your operation runs on Microsoft 365 — Copilot working inside your actual mail, spreadsheets, and meetings does what no external assistant can reach. If you're not a 365 shop, there's no reason to enter this ecosystem for the AI alone; the assistant seat market is stronger outside it.
The job in the stack
The Microsoft-side seat: AI woven through the 365 suite, for operations that live in Outlook, Excel, and Teams.
Pricing
| Plan | Price | Notes |
|---|---|---|
| Copilot (consumer) | $0 | Web and app assistant with daily limits |
| Microsoft 365 Premium | $19.99/mo | The individual seat since Copilot Pro retired (closed to new customers Oct 1, 2025; existing subscriptions stopped renewing after Aug 1, 2026). Copilot in the Office apps for the subscription owner, desktop Office, up to 6TB OneDrive |
| M365 Copilot Business | $21/user/mo | The $18 promo ended June 30, 2026 — $21 is the standing rate from July 1; ≤300 users |
| Business Standard + Copilot bundle | ~$23.50/user/mo | New July 2026 bundle: M365 Business Standard with Copilot included; Premium bundle ~$32/user |
| M365 Copilot (Enterprise) | $30/user/mo | Unchanged by the July 2026 reset; requires qualifying M365 license; E7 suite bundle $99/user |
Pricing verified 2026-08-08. Plans change — the source of truth is Microsoft Copilot's own pricing page.
Models & versions
- M365 CopilotGrounded in your tenant's mail, files, meetings via Microsoft Graph
- Copilot agentsTask agents across the suite and in Copilot Studio
The honest read
What works
- +Reads your actual work context — mailbox, calendar, SharePoint, Teams
- +Excel and Outlook integration automate the drudgery layers of office work
- +Tenant-grounded answers with enterprise governance controls
- +New Business Standard + Copilot bundle (~$23.50/user) beats buying suite and Copilot separately
What breaks
- −Value collapses outside the 365 ecosystem — it's suite AI, not standalone AI
- −Licensing matrix is genuinely confusing; budget a careful read before buying seats
- −Raw model quality per dollar trails dedicated assistant subscriptions
Use it for
- →365-native businesses automating email, docs, and meeting workflows
- →Excel-heavy operations wanting analysis in-place
- →IT-governed environments that need tenant boundaries on AI
Skip it if
- ×Your operation runs on Google Workspace — Gemini is the same play on that side
- ×You want the best pure assistant — that comparison is Claude vs ChatGPT
Questions operators ask
?My Copilot Pro subscription stopped renewing — what replaces it?
Microsoft 365 Premium at $19.99/mo is the individual replacement: Copilot in the Office apps for the account holder, plus desktop Office and the storage. If a team relies on it, buy M365 Copilot Business instead ($21/user, or ~$23.50 bundled with Business Standard) — that is the version grounded in your company tenant's mail, files, and meetings, which is the whole reason to pay for Copilot rather than a standalone assistant.
What changed
- Copilot Pro is gone. It closed to new customers Oct 1, 2025 and existing subscriptions stopped renewing after Aug 1, 2026 — our record still listed it as a live $20/mo individual plan. Replaced with Microsoft 365 Premium at $19.99/mo (Copilot in Office for the account holder, desktop Office, up to 6TB storage) and kept Copilot Pro as a marked-retired row so anyone arriving from an old subscription knows where to go. Business $21/user, Business Standard bundle ~$23.50, Enterprise $30/user, E7 $99/user all re-confirmed unchanged. FAQ rewritten — it asked a question that no longer has an answer.
- July 1, 2026 pricing reset applied: the $18/user Business promo ended June 30 (our prior record said Sept 30 — Microsoft moved it), standing rate is $21/user annual. New bundles launched: Business Standard with Copilot ~$23.50/user, Business Premium with Copilot ~$32/user. Enterprise standalone $30 unchanged. Broader M365 suite prices also rose July 1 (Business Standard $12.50→$14, E3 $36→$39).
- Added to the stack (Microsoft-side seat). Verified: Copilot Pro $20, M365 Copilot Business $18/user promo (through Sept 30), Enterprise $30/user, E7 bundle $99/user (May 2026).
Give Microsoft Copilot a job
The Microsoft-side seat: AI woven through the 365 suite, for operations that live in Outlook, Excel, and Teams.
Try Microsoft Copilot →Alternatives with different jobs
Google Gemini
02 DecisionsThe Google-side seat: massive context windows, Deep Research reports, and native reach into Gmail, Docs, and Drive.
Claude
02 DecisionsThe thinking seat: long documents, hard reasoning, code, and anything where the words have to be right the first time.
ChatGPT
02 DecisionsThe generalist seat: quick answers, brainstorming, voice mode, and the widest plugin/app ecosystem when you need breadth over depth.