Glean vs Microsoft Copilot: 2026 comparison
Enterprise AI worker — unified search, work assistant, and custom agents grounded in your company knowledge.
Microsoft's AI work assistant — agents across Word, Excel, Outlook, Teams, and the Microsoft 365 stack.
Glean vs Microsoft Copilot — specs
| Spec | Glean | Microsoft Copilot |
|---|---|---|
| Agent Rank | 80 / 100 (A) | 75 / 100 (A) |
| Autonomy | Assistant | Semi-autonomous |
| Pricing | Subscription · Free tier | Subscription · from $30 |
| Open source | No | No |
| Capabilities | RAG, Memory, Tool use | Tool use, RAG, Memory, Vision |
| Integrations | 6 apps | 5 apps |
| Verified | Verified | Verified |
| Released | Feb 2025 | Mar 2025 |
Agent Rank breakdown
- Autonomy fit
- 7
- Capabilities
- 6
- Integrations
- 10
- Pricing value
- 9
- Polish & maturity
- 6
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
- Autonomy fit
- 8
- Capabilities
- 8
- Integrations
- 4
- Pricing value
- 7
- Polish & maturity
- 8
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pros & cons
- +Single best enterprise knowledge agent in 2026 — instant grounding in your company data
- +Custom Agents (Glean Agents) let teams build internal workflows without code
- +Strong permission-aware retrieval — agents see only what users are allowed to
- −Enterprise-only — typically $50K+ ACV minimum
- −Initial connector setup takes weeks for full coverage
- −Pricier than ChatGPT Enterprise on a per-seat basis
- +Deepest integration with the Office stack — agents that already know your data
- +Copilot Studio lets non-technical teams build internal agents
- +Strong enterprise compliance and data residency story
- −Per-seat pricing at $30/mo adds up fast across large M365 tenants
- −Quality varies widely by app — Outlook Copilot strong, Excel weaker
- −Tight coupling to M365 limits portability
Pricing
- +Unified search across 100+ apps
- +Work assistant + custom agents
- +SSO + enterprise data isolation
- +Web + mobile Copilot
- +GPT-5 access
- +Priority access
- +Image generation
- +Copilot in Word/Excel
- +Word, Excel, Outlook, Teams agents
- +Org-wide data grounding
- +Custom Copilot Studio agents
Which one should you pick?
Pick Microsoft Copilot if you want the highest autonomy and the verification loop is in place.
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Frequently asked
Should I pick Glean or Microsoft Copilot in 2026?+
Pick Glean if cost is the main constraint. Pick Microsoft Copilot if you want the highest autonomy and the verification loop is in place. Most working teams running both can use Glean for primary work and Microsoft Copilot for the workflows where its specific strengths matter.
What's the price difference between Glean and Microsoft Copilot?+
Glean starts at Subscription · Free tier; Microsoft Copilot starts at Subscription · from $30. Glean is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.
Which is more autonomous, Glean or Microsoft Copilot?+
Microsoft Copilot is the more autonomous of the two (Semi-autonomous vs Assistant). Higher autonomy ships throughput faster but requires verification loops in place — see our autonomous-vs-copilot framing for when each tier wins.