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
Microsoft 365 Copilot vs ChatGPT pricing
Research 2026-08-18 from first-party pages. Affiliate economics excluded. Confirm live packaging — usage, seats, and credits change TCO.
Microsoft 365 Copilot
From $21.00/user/mo
ChatGPT
From $20.00/user/mo
Microsoft 365 Copilot
Starting from $21.00/user/mo
No free trial evidenced
- Copilot Business (add-on)Popular$21.00/user/mo
- $21/user/mo billed annually — SMB Copilot add-on on a qualifying Business plan (≤300 seats typical).
- Copilot (Enterprise add-on)$30.00/user/mo
- $30/user/mo billed annually — enterprise Copilot add-on on E3/E5-class Microsoft 365.
- Enterprise / volumeCustom
- Volume, education, and frontline packaging — confirm with Microsoft or a Cloud Solution Provider.
ChatGPT
Starting from $20.00/user/mo
No free trial evidenced
- Free$0.00/user/mo
- Free chat with usage limits — entry tier for everyday LLM assistant use.
- PlusPopular$20.00/user/mo
- $20/mo for individuals — higher model access and usage vs Free.
- Business (annual)$20.00/user/mo
- $20/seat/mo billed annually (2-seat minimum). Team workspace with admin controls.
- Business (monthly)$25.00/user/mo
- $25/seat/mo on monthly billing (2-seat minimum). Same Business packaging at higher monthly list.
- Pro$100.00/user/mo
- From ~$100/mo — higher compute, advanced models, and expanded usage for power users.
Estimate your team cost
Monthly estimate from verified per-seat list pricing. Confirm on the vendor site before purchasing.
Microsoft 365 Copilot
$315.00/mo
ChatGPT
$300.00/mo
+$15.00/mo — Microsoft 365 Copilot costs more
Verified monthly unit prices · Aug 18, 2026
Prices in USD
Shown per user / month from verified list pricing.
Plans can change
Confirm live vendor rates before purchasing.
Add-ons may apply
Calling, SMS, or usage fees can add cost.
Independence
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