Microsoft 365 Copilot vs ChatGPT Business
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Which is better, Microsoft 365 Copilot or ChatGPT Business?
It depends on your team. Hire Microsoft 365 Copilot if your company runs on Microsoft 365 and Teams, and you want AI grounded in your existing mail, files and meetings with Microsoft's security. Hire ChatGPT Business if your team already uses ChatGPT every day and mainly needs a shared, admin-managed version with connectors to your files. On our rubric Microsoft 365 Copilot scores 7.1 to ChatGPT Business's 7.1, but ChatGPT Business scores higher on role coverage and autonomy with control and value.
Best for: Companies that run on Microsoft 365 and Teams.
Visit Microsoft 365 CopilotBest for: Teams that want the familiar ChatGPT with shared projects and admin controls.
Visit ChatGPT BusinessScores side by side
| Criterion | Microsoft 365 Copilot | ChatGPT Business |
|---|---|---|
| Role coverage (25%) | 6.5 | 7.0 |
| Autonomy with control (20%) | 6.0 | 6.5 |
| Where it works (15%) | 8.0 | 6.5 |
| Business memory (15%) | 8.0 | 7.0 |
| Value (15%) | 6.5 | 8.0 |
| Trust (10%) | 8.5 | 8.0 |
| Overall | 7.1 | 7.1 |
What each one can do
| Capability | Microsoft 365 Copilot | ChatGPT Business |
|---|---|---|
| Works inside Slack | ||
| Works inside Microsoft Teams | ||
| Telegram, Discord, WhatsApp or text | ||
| Reads and sends email | ||
| Takes or makes phone calls | ||
| Works on a schedule or trigger | ||
| Asks before risky actions | ||
| Remembers your business | ||
| Builds and edits your website | ||
| Handles customer payments | ||
| API or MCP access |
Price and fine print
Prices, fees and free plans as of November 2026, from each company's own site.
| Detail | Microsoft 365 Copilot | ChatGPT Business |
|---|---|---|
| Type | Office-suite assistant | General AI coworker |
| Role it fills | Assistant across Outlook, Teams, Word, Excel and PowerPoint | Generalist assistant for research, writing and analysis |
| Works in | Microsoft Teams, Outlook, Word, Excel, PowerPoint | Web, Desktop, Mobile |
| Our rank | #5 | #4 |
| Starting price | From $18/user/mo, as of November 2026 | From $20/user/mo, as of November 2026 |
| Free plan | Copilot Chat is included at no extra cost with eligible Microsoft 365 plans (as of November 2026) | Yes: free individual ChatGPT (as of November 2026) |
| Extra fees | Advanced features such as Copilot Cowork and Autopilot are billed by usage on top of the license | None listed |
| Refunds | Not stated | Not stated |
Microsoft 365 Copilot: strengths and concerns
- Grounded in your company's mail, files and meetings
- Works inside Teams, Outlook and the Office apps
- Enterprise security and compliance
- Copilot Chat included with eligible plans
- Mostly drafts and summarizes; autonomous features cost extra by usage
- Needs a Microsoft 365 Business plan underneath
- Little help outside the Microsoft ecosystem
- Promotional price ends after the first year
ChatGPT Business: strengths and concerns
- Everyone already knows how to use it
- Low per-seat price
- Connectors to Google Workspace, Slack, GitHub and Microsoft 365
- Admin controls and SSO on the standard seat
- You go to it; it doesn't sit in your team's channels
- Reads your tools through connectors more than it acts in them
- No phone, payments or customer-facing work
- Business prices come from third-party reports; OpenAI's page didn't show them to us
Microsoft 365 Copilot vs ChatGPT Business: questions
Is Microsoft 365 Copilot better than ChatGPT Business?
On our rubric, Microsoft 365 Copilot scores higher (7.1 vs 7.1 out of 10, as of November 2026). ChatGPT Business is still the better hire if your team already uses ChatGPT every day and mainly needs a shared, admin-managed version with connectors to your files.
Which works where my team works, Microsoft 365 Copilot or ChatGPT Business?
Microsoft 365 Copilot works in Microsoft Teams, Outlook, Word, Excel, PowerPoint. ChatGPT Business works in Web, Desktop, Mobile.
Which is cheaper, Microsoft 365 Copilot or ChatGPT Business?
Microsoft 365 Copilot: from $18/user/mo. ChatGPT Business: from $20/user/mo. Both as of November 2026. Per-user and per-team prices aren't directly comparable, so multiply by your team size, and count any fees and usage charges.