Microsoft 365 Copilot vs ChatGPT
Choose Microsoft 365 Copilot when the primary job is an LLM assistant inside Microsoft 365 — not a standalone chat tab and not GitHub Copilot. Choose ChatGPT when a general-purpose LLM assistant with custom projects, connectors, and a clear team upgrade path is the primary job. Overall: Microsoft 365 Copilot 8.2 vs ChatGPT 8.7. Not hands-on lab tested; confirm live pricing and usage caps. Compare published pricing, LLM depth, writing, voice, agents, governance, integrations, and usage models.
Microsoft 365 Copilot
Workspace LLM assistant add-on — Copilot Business from $21/user/mo annual; Enterprise add-on $30/user/mo annual on a qualifying Microsoft 365 base licence.
Best for
- • Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
- • IT buyers who need tenant admin and Graph grounding
- • Enterprises already paying for E3/E5 who can absorb the $30 add-on
Starting from $21.00/user/mo
No free plan
VS
Our verdict
Choose Microsoft 365 Copilot when the primary job is an LLM assistant inside Microsoft 365 — not a standalone chat tab and not GitHub Copilot. Choose ChatGPT when a general-purpose LLM assistant with custom projects, connectors, and a clear team upgrade path is the primary job. Overall: Microsoft 365 Copilot 8.2 vs ChatGPT 8.7. Not hands-on lab tested; confirm live pricing and usage caps.
Microsoft 365 Copilot is better for
- ✓ Governance & privacy
- ✓ Integrations
ChatGPT is better for
- ✓ Free plan
- ✓ LLM assistant depth
- ✓ Writing assistance
- ✓ Voice / TTS depth
Tie
- • Agent / builder depth
Choose Microsoft 365 Copilot if: Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
Choose ChatGPT if: Teams and individuals wanting a mainstream general-purpose LLM assistant
ChatGPT
General-purpose LLM assistant — Free; Plus $20/mo; Business from $20/seat annual ($25 monthly, 2-seat min); Pro from $100; Enterprise contact.
Best for
- • Teams and individuals wanting a mainstream general-purpose LLM assistant
- • Buyers who need custom GPT projects and broad model access on Plus/Pro
- • Orgs standardizing on OpenAI with Business admin and connector depth
Starting from $20.00/user/mo
Free plan available
Evidence & transparency
Sources and research process behind this comparison.
Sources
5
Criteria
10
Screenshots
8
Sources consulted
| Title | Product | Type |
|---|---|---|
| Microsoft 365 Copilot — Official Site | Microsoft 365 Copilot | official-product-page |
| Microsoft 365 Copilot Pricing | Microsoft 365 Copilot | official-pricing-page |
| Microsoft 365 Copilot pricing | Microsoft 365 Copilot | official-product-page |
| ChatGPT — Official Site | ChatGPT | official-product-page |
| ChatGPT Pricing | ChatGPT | official-pricing-page |
Methodology steps
- 1Collect first-party product and pricing evidence
- 2Map both products to the same category criteria
- 3Record criterion outcomes with confidence and sources
- 4Publish only when editorial gates allow indexing
Methodology version 1.0.0.
Affiliate relationships never change comparison outcomes. We evaluate both products on the same criteria and allow ties when evidence does not support a universal winner.
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