“1. Glean Best overall for cross-company knowledge”
“Searches across many business applications.”
“Produces answers with inline citations and source previews.”
“Respects source-system permissions.”
“Can turn research into emails, briefs, plans, and other written content.”
“Cross-platform search | Excellent | More Microsoft-centric | Strong | Connector-dependent”
“Glean, for example, documents that citations can be absent when an answer doesn't retrieve company sources.”
“2. Microsoft 365 Copilot Best for Microsoft-centric organizations”
“Uses SharePoint, OneDrive, Teams, Outlook, and other Microsoft 365 content.”
“Provides source citations for grounded answers.”
“Inherits existing Microsoft 365 permissions.”
“Can draft and rewrite directly in Word, Outlook, and other applications.”
“Writing and drafting | Strong | Excellent | Good | Excellent”
“Cross-platform search | Excellent | More Microsoft-centric | Strong | Connector-dependent”
“Be aware that licensing and configuration affect which work-data capabilities are available.”
“3. Guru Best for trusted, verified answers”
“Emphasizes source citations and verified content.”
“Supports inherited permissions and role-based access.”
“Integrates with Slack, Teams, and external AI clients.”
“Verified knowledge workflows | Good | Good | Excellent | Depends on setup”
“Writing and drafting | Strong | Excellent | Good | Excellent”
“4. Claude Enterprise Best for writing and synthesis”
“Enterprise Search can retrieve information across connected company sources.”
“Generates responses with source citations.”
“Supports research, synthesis, and polished long-form writing.”
“Writing and drafting | Strong | Excellent | Good | Excellent”
“Validate connector-level permission enforcement and administration for your specific deployment.”
“Cross-platform search | Excellent | More Microsoft-centric | Strong | Connector-dependent”