Head-to-head
Glean vs Microsoft 365 Copilot
Glean leads: the AI models rank it above its rival on 1 of the 1 leaderboard they share. Based on how ChatGPT, Claude, Gemini & Grok rank both across the leaderboard they share — re-polled weekly, reasoning shown verbatim.
| Leaderboard | Glean | Microsoft 365 Copilot |
|---|---|---|
| Best enterprise AI search platform | #1 / 9 | #2 / 9 |
Why the models rank Glean — on best enterprise ai search platform
“Best overall turnkey cross-application search: strong relevance and personalization, 100+ connectors, permission-aware indexing, cited answers, knowledge-graph context, and polished search-to-action workflows.”
Why the models rank Microsoft 365 Copilot — on best enterprise ai search platform
“For the majority of enterprises already on M365, it's the default that keeps getting harder to beat — native Graph grounding across SharePoint/Teams/Outlook with tenant-level permission fidelity, Copilot connectors for third-party sources, and no new vendor or security review needed; ranked #2 on the assumption the typical buyer is M365-centric.”
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Ranks from the merged 4-model leaderboards · re-polled weekly · methodology