Microsoft 365 Copilot vs QuillBot
Compare Microsoft 365 Copilot and QuillBot on features, pricing, and buyer fit using the same researched criteria.

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
No universal winner. Choose based on which criteria matter most for your team.
Microsoft 365 Copilot is better for
- ✓ LLM assistant depth
- ✓ Writing assistance
- ✓ Voice / TTS depth
- ✓ Agent / builder depth
QuillBot is better for
- ✓ Free plan
- ✓ Usage / credits model
Choose Microsoft 365 Copilot if: Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
Choose QuillBot if: Students and writers who primarily need paraphrasing and grammar

QuillBot
AI writing and paraphrasing assistant — Free; Premium ~$8.33/mo annual ($99.95/yr).
Best for
- • Students and writers who primarily need paraphrasing and grammar
- • Content teams wanting a lightweight writing assistant vs full LLM subscription
- • Budget-conscious buyers who do not need chat/reasoning depth
Starting from $8.33/user/mo
Free plan available
Evidence & transparency
Sources and research process behind this comparison.
Sources
6
Criteria
10
Screenshots
7
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 |
| QuillBot — Official Site | QuillBot | official-product-page |
| QuillBot Pricing | QuillBot | official-pricing-page |
| QuillBot Premium | QuillBot | official-product-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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