Tettra AI

Freemium

By AI Bookmarks Editorial Team, Directory editors Last reviewed 2026-10-23

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Internal knowledge base with owner verification cycles, so pages do not quietly go stale.

Quick facts

Pricing	Freemium
Free tier	Yes — free plan for a small team with limited pages
Platforms	Web, Slack, Chrome extension
Developer	Tettra
Website	https://tettra.com/

What Tettra AI is

Tettra is a knowledge base for internal documentation. Pages are organised by category and owner, with a verification cycle that asks the owner to confirm a page is still accurate, which addresses the usual failure of internal wikis — content that was right two years ago. Questions asked in Slack can be answered from the knowledge base, and unanswered questions become suggestions for pages to write. The AI layer drafts and updates pages from existing content and threads. The limits are scope and participation: it works only if teams actually write and verify, the Slack-first flow suits some organisations and not others, and it is a wiki rather than a document editor with rich layout. Categories and named owners make it clear who is responsible for a page, which is usually the missing piece in an internal wiki. Answers link back to the page they came from, so people can check the source.

Best for

Teams whose internal answers are scattered across chat
Onboarding documentation that must stay current
Customer support teams writing internal runbooks

Not ideal for

Rich documents with complex layout and databases
Organisations that will not maintain verification cycles

Pros

Owner verification keeps pages from going stale
Questions in Slack get answers from the wiki
Drafts are suggested from existing threads

Cons

Requires people to write and verify regularly
Slack-first flow does not suit every team
Layout and formatting are basic

Pricing in detail

The free plan covers a small team with a limited number of pages. Paid plans are billed per user per month and raise page limits, add verification workflows, Slack integration, analytics and AI features; annual billing lowers the monthly rate. Because the cost is per seat and the benefit depends on participation, a wide rollout to people who never write tends to inflate the bill without improving the wiki.