Otter.ai vs Microsoft 365 Copilot
Otter.ai is meeting transcription/notes; Microsoft 365 Copilot is a workspace LLM add-on — different primary jobs. Choose Otter.ai when AI meeting notes and auto-join transcription are the job — not a general LLM or voice studio. Choose Microsoft 365 Copilot when the primary job is an LLM assistant inside Microsoft 365 — not a standalone chat tab and not GitHub Copilot. Overall: Otter.ai 8 vs Microsoft 365 Copilot 8.2. Not hands-on lab tested; confirm live pricing and usage caps. Compare published pricing, LLM depth, writing, voice, agents, governance, integrations, and usage models.

Otter.ai
AI meeting notes — Free 300 min; Pro $8.33/user/mo annual ($16.99 monthly); Business $19.99 annual ($30 monthly); Enterprise contact.
Best for
- • Individuals drowning in meeting notes
- • Sales and CS teams that want auto-join transcripts
- • SMBs that need Business admin without an enterprise RFP
Starting from $8.33/user/mo
Free plan available
VS
Our verdict
Otter.ai is meeting transcription/notes; Microsoft 365 Copilot is a workspace LLM add-on — different primary jobs. Choose Otter.ai when AI meeting notes and auto-join transcription are the job — not a general LLM or voice studio. Choose Microsoft 365 Copilot when the primary job is an LLM assistant inside Microsoft 365 — not a standalone chat tab and not GitHub Copilot. Overall: Otter.ai 8 vs Microsoft 365 Copilot 8.2. Not hands-on lab tested; confirm live pricing and usage caps.
Otter.ai is better for
- ✓ Free plan
- ✓ LLM assistant depth
- ✓ Usage / credits model
Microsoft 365 Copilot is better for
- ✓ Governance & privacy
- ✓ Integrations
Tie
- • Writing assistance
- • Voice / TTS depth
- • Agent / builder depth
Choose Otter.ai if: Individuals drowning in meeting notes
Choose Microsoft 365 Copilot if: Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams

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
Evidence & transparency
Sources and research process behind this comparison.
Sources
6
Criteria
10
Screenshots
9
Sources consulted
| Title | Product | Type |
|---|---|---|
| Otter.ai — Official Site | Otter.ai | official-product-page |
| Otter.ai Pricing | Otter.ai | official-pricing-page |
| Otter.ai pricing | Otter.ai | official-product-page |
| 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 |
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.
Read full methodology →Some visit links may be affiliate links — we may earn a commission at no extra cost to you. Comparison outcomes are never based on commission.