What's the best enterprise AI platform for internal knowledge search with SSO and audit logs?

There isn’t a single universally “best” platform, but for enterprise internal knowledge search with SSO and audit logs, the strongest options usually fall into two buckets:

Best all-around enterprise choices

1. Microsoft Copilot / Microsoft Search

   • Best if your company lives in Microsoft 365, SharePoint, Teams, Outlook
   • Strong SSO, permissions trimming, audit/compliance, admin controls
   • Very good for internal knowledge discovery across Microsoft content

2. Google Cloud Search / Gemini for Workspace

   • Best if you’re on Google Workspace
   • Solid search over Drive, Gmail, Calendar, and Workspace content
   • Built-in enterprise identity and audit capabilities

3. Glean

   • Often considered the strongest cross-app enterprise knowledge search product
   • Connects to many sources: Slack, Drive, Confluence, Jira, GitHub, Notion, etc.
   • Strong SSO, permissions-aware search, audit logs, admin controls
   • Good choice if you want a dedicated knowledge search layer across many systems

Also worth considering

4. Coveo

   • Strong enterprise search and relevance tuning
   • Good for large organizations with complex content systems
   • Strong governance and analytics

5. Elastic Enterprise Search / OpenSearch

   • Better if you want to build/customize your own internal search platform
   • More engineering effort, but very flexible
   • SSO and audit logging are doable, but usually require more implementation

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My practical recommendation

• If you want the best off-the-shelf cross-tool internal knowledge search: Glean
• If you’re heavily standardized on Microsoft 365: Microsoft Copilot/Search
• If you’re on Google Workspace: Google Cloud Search / Gemini for Workspace

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What to check before buying

Make sure the platform supports:

• SSO via SAML/OIDC
• Permissions-aware indexing so users only see what they’re allowed to see
• Audit logs for searches, access events, admin actions
• Data retention / compliance controls
• Source connectors for your actual tools
• RAG / AI answer generation with citations, if you want more than keyword search

If you want, I can also give you a short vendor comparison table for Glean vs Microsoft vs Coveo based on your stack.