Our Glean review
If you need internal knowledge search, Glean is one of the safest picks in AI productivity — with the caveat that enterprise-only.
We score Glean 4.1 out of 5 — strong ease of use, strong performance and acceptable value for money.
What Glean is
Glean is Glean's AI productivity product, launched in 2019. Enterprise AI search and assistant that indexes your company apps and answers questions with permission-aware sources.
It is aimed at intermediate users — the learning curve is moderate. Day one you would use it for internal knowledge search, onboarding and support agent assist. It runs on Web, Slack, Teams, iOS and Android, including a mobile app, and there is an API if you want it inside your own systems.
Where it shines
What you are really paying for here: finds knowledge buried across tools and respects existing access controls. The feature set behind that is company-wide search, permission-aware answers, custom agents, 100+ connectors and slack & Teams apps.
We rate performance 4.5/5 and answer accuracy around 90% for the tasks in this category, which is why it holds up for internal knowledge search and onboarding.
Where it falls short
It is not without cost or compromise: enterprise-only and needs IT rollout.
Expect a real ramp-up — we rate the learning curve moderate. Budget time for it before judging the tool.
Pricing and value for money
Pricing is Enterprise, typically per seat annually. There is no public per-seat price — it is quoted per organisation, so the real number depends on your team size and contract. There is no free tier, so trial it deliberately before committing.
Ask for the quote early: the alternatives below publish their pricing, so you can hold this one to a number you can compare.
Who should use Glean
Glean is the right call for internal knowledge search, onboarding and support agent assist. We would not recommend it if enterprise-only is a bigger problem for you than finds knowledge buried across tools is a benefit.
The alternatives worth comparing are Notion AI ($10/mo) and NotebookLM ($20/mo). Put them side by side before you buy.
Worth a trial: Glean at quoted pricing is best used for internal knowledge search and onboarding, and it earns 4.1/5 from us.