Glean vs Tettra (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: Glean does not list a price
Free plan
Tie
Neither has one
Higher rating
Glean
4.3 against 3.9
Same job?
Yes
Both are Productivity tools

Side by side

Compared on	Glean	Tettra
Our rating	4.3Better	3.9
Starts at	Not listed	Not listed
Free plan	No	No
Category	Productivity	Productivity
Plans	See pricing	See pricing
Key features	Enterprise search across dozens of connected internal systems Permission-aware results respecting existing access controls AI agents that take action across connected systems No self-serve free tier Operating since 2019	AI knowledge base built from Docs, PDFs or native pages Kai: AI Slack bot for instant team Q&A Automated content verification and gap identification Edit approval workflow Multi-team support: companies, support teams, agencies, HR
Pros	Genuinely searches across scattered systems rather than requiring migration Permission-aware design respects existing access controls automatically AI agents extend beyond search into taking action	Answers directly in Slack, where teams already ask each other questions Automated gap identification keeps the knowledge base actively improving 30-day full-feature trial with no card required
Cons	No free tier or transparent self-serve pricing Enterprise sales process required to evaluate Not a content repository itself, depends entirely on connected systems	Bot answer quality depends entirely on the underlying content staying current Content-verification workflow needs real ongoing team effort, not just setup Full paid pricing wasn't detailed on the page checked
Company	Glean Technologies, Inc., founded 2019	Tettra, Inc.

Prices come from each vendor's pricing page, last checked 20260824. Check the vendor before you buy.

FAQ

Questions people ask

Is Glean better than Tettra?

In our reviews Glean scores 4.3 and Tettra scores 3.9. The better pick depends on the job. Glean: Searches across every internal company tool at once, not a notes app. Tettra: An AI Slack bot ("Kai") answers repetitive team questions from your own knowledge base, and flags content gaps as they come up.

Which is cheaper, Glean or Tettra?

Glean: see pricing. Tettra: see pricing.

Do Glean and Tettra have free plans?

Neither lists a free plan.

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