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
Pros & cons
A balanced look at where each product shines — and where it falls short.
Microsoft 365 Copilot
Strengths in greenPros
- Stronger on llm assistant depth
- Stronger on writing assistance
- Stronger on voice / tts depth
- Stronger on agent / builder depth
Cons
- Trails on free plan
- Trails on usage / credits model
Best for
Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
QuillBot
Trade-offs in redPros
- Stronger on free plan
- Stronger on usage / credits model
Cons
- Trails on llm assistant depth
- Trails on writing assistance
- Trails on voice / tts depth
Best for
Students and writers who primarily need paraphrasing and grammar
Choose if…
Choose Microsoft 365 Copilot if
- 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
Choose QuillBot if
- 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
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