The context engine that makes AI actually useful

Tana is your organization's second brain. It captures what your team knows, keeps it current, and feeds the right context to every person and every AI agent. So the answers you get are grounded in how your company actually works.

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A second brain that stays up to date

Tana turns the work your team already does into structured, living context: a shared brain that everyone and every agent can draw on.

Automatically capture context

Context accrues from the meetings and work you already do. Decisions, projects, and people are captured and structured automatically, not left as notes that rot in a folder. No manual upkeep.

A Tana call where agents capture decisions, issues, and contacts as structured, reusable context

Keep it updated, avoid duplicates

New decisions update the doc you already have instead of piling up next to it. Context consolidates in one current version, rather than scattering into stale, conflicting copies.

A Tana doc updated in place to a revised scope, instead of a duplicate being created

Safely share with your team and agents

One shared source of context the whole org draws on. Everyone, and every agent, gets exactly the context they need, with granular control over who sees what.

Tana access controls: share with everyone, only you, or only selected people

AI is only as good as the context you give it

aka sh*t in, sh*it out

Most AI is brilliant in a vacuum and useless on your actual work. Ask it about your roadmap, your customers, or last quarter's decision and it guesses, because it has never seen them.

The context it needs is scattered across docs, wikis, chat threads, and people's heads, and most of it is stale the moment it is written. Wikis rot. Notion turns into a graveyard of pages nobody opens. The knowledge exists, but neither your team nor your AI can reliably find the current version.

So you re-explain the same context over and over, and your AI keeps hallucinating around the gaps.

Everything your team knows, connected

Projects, people, decisions, and docs stay connected in one place, not scattered across separate tools. Follow any thread and the full context is one click away.

Ask in plain language, get grounded answers

Ask a question and Tana answers from your own context, with the sources attached. No guessing, no hallucinating around the gaps, just what your company actually knows.

Tana answering 'What did we decide about the sync engine?' grounded in the team's own context

One up-to-date version, not five

When something changes, the agent finds the doc you already have and updates it, instead of spawning another copy. You and your agents always read the current version.

Tana finding an existing 'Q3 Investor Memo' and updating it instead of creating a new one

Questions and answers

What is context engineering?

Context engineering is the practice of giving AI the right information at the right time so its output is actually useful. Tana does it for you: it structures what your team knows into living context and feeds the relevant slice to each person and agent.

How is this different from a wiki or Notion?

A wiki is a pile of documents you maintain yourself, and it goes stale fast. Tana captures context from the work you already do, keeps it structured, and updates the docs you already have instead of duplicating them. It is built for AI to read, not just people.

How does the context stay up to date?

Agents and people update the docs you already have instead of starting new ones each time, and because the team actually works in Tana, the context reflects current reality rather than a page nobody reopened.

Is this just RAG over my documents?

No. RAG retrieves chunks of flat text and hopes they are relevant. Tana gives AI structured context with explicit relationships, so it can reason over how things connect and ground answers in what is actually true, with far less hallucination.

Does it work with my AI coding tools?

Yes. The same structured context grounds the agents in your meetings and the AI coding tools your engineers use, so the code they draft reflects your real decisions and standards.

Is my team's data private?

Privacy is built in, with granular control over what is shared with which people and agents. Your data is never used to train AI models, unless you consent to it. Tana is SOC2 compliant*. See the privacy page for how your data is handled.* In progress. ETA Q3 2026.

Give your AI the context it has been missing.