LAST AUDIT 2026-09-17
compare_arrowsOPS · 4-WAY COMPARISON
Enterprise AI Assistants: Microsoft 365 Copilot vs Workspace Gemini vs Glean vs Notion AI
Four enterprise assistants compared on AiRecMark archive scores, five-dimension quality, list pricing and target fit.
workspace_premiumVERDICT
Notion AI leads this field with 86.7/100 — +5.9 pts over Microsoft 365 Copilot.
All figures below are derived from the AiRecMark deterministic five-dimension evaluation archives. Pricing quotes are taken verbatim from each vendor's published plans.
| Rank | Tool & Vendor | Quality / Perf / Usability | Score | Pricing | Best for | Spec |
|---|---|---|---|---|---|---|
| #1 | NO Notion AINotion Labs, Inc. |
86 84 93 |
86.7 | Business $20 / member / mo (AI included) · Fre | Teams already running on Notion wikis and docs | Inspect |
| #2 | MI Microsoft 365 CopilotMicrosoft |
82 80 82 |
80.8 | Premium Individual $12/user/mo · Premium Famil | Microsoft-Ecosystem Offices | Inspect |
| #3 | GO Google Workspace GeminiGoogle |
82 80 82 |
80.8 | Business Starter $8.40/user/mo · Standard $16. | Google-Workspace Organizations | Inspect |
| #4 | GL GleanGlean |
82 80 78 |
77 | No public pricing — contact sales for a quote | Enterprise Knowledge Search | Inspect |
Five-Dimension Matrix
| Dimension | Notion AI | Microsoft 365 Copilot | Google Workspace Gemini | Glean |
|---|---|---|---|---|
| Quality | 86 | 82 | 82 | 82 |
| Features | 84 | 84 | 82 | 82 |
| Usability | 93 | 82 | 82 | 78 |
| Performance | 84 | 80 | 80 | 80 |
| Value | 88 | 76 | 78 | 62 |
Choose By Fit
NO
Notion AI
Notion Labs, Inc. · 86.7/100Choose Notion AI if you need teams already running on notion wikis and docs.
- AI bundled into Business plan — no separate add-on
- Workspace-wide context (wikis, docs, projects)
Business $20 / member / mo (AI included) · Free tier
MI
Microsoft 365 Copilot
Microsoft · 80.8/100Choose Microsoft 365 Copilot if you need microsoft-ecosystem offices.
- Copilot across Word/Excel/PowerPoint/Outlook/Teams
- New $21 Business tier (promo $18 year one)
Premium Individual $12/user/mo · Premium Family $20 · Busine
GO
Google Workspace Gemini
Google · 80.8/100Choose Google Workspace Gemini if you need google-workspace organizations.
- Gemini included natively in all Business/Enterprise SKUs
- NotebookLM Plus and Vids bundled
Business Starter $8.40/user/mo · Standard $16.80 · Plus $26.
GL
Glean
Glean · 77/100Choose Glean if you need enterprise knowledge search.
- Permission-aware search across all company apps
- 40+ LLMs with 275+ connectors
No public pricing — contact sales for a quote
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