Glean

Paid

Enterprise AI work assistant that searches and reasons across a company's apps, with permission-aware results and a platform for building agents.

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Our take

A leading enterprise AI search-and-assistant platform that unifies company knowledge across apps with permission-aware answers and agents.

Best for

Mid-to-large enterprises that want one AI assistant grounded in all their internal tools and documents.

Pros

Searches and reasons across the whole company's apps
Permission-aware so users only see what they should
Platform for building internal AI agents
Strong enterprise traction and rapid growth

Cons

Custom enterprise pricing with high minimums
Real value needs broad integration and rollout
Overkill for small teams

How it compares

Versus Microsoft Copilot, Glean is more neutral across a heterogeneous app stack; versus building on raw RAG, it ships governance and connectors out of the box.

Full review

Glean is an enterprise AI assistant that indexes a company's applications and documents, then answers questions and completes work grounded in that knowledge while respecting each user's permissions.

Beyond search, it has become a platform for building internal AI agents, and its rapid valuation growth reflects strong demand for governed, company-wide AI.

Pricing is custom and enterprise-oriented, typically with sizable seat minimums, so it fits larger organizations rather than small teams or individuals.