> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chief.bot/llms.txt
> Use this file to discover all available pages before exploring further.

# How your data is used (concept) — and whether it trains AI

> This article answers the questions people ask most about their data in Chief: Is it private?

This article answers the questions people ask most about their data in Chief: Is it private? Does it train AI models? [Who can see it](/help/security-privacy/visibility-access-controls-private-restricted-project)?

## Does Chief train AI models on your data?

No. The third-party language models Chief uses to generate responses are **not trained on your data**. Your uploaded Files, chats, and project content are used to answer your questions — not to improve anyone's model.

<Note>
  ℹ️ **Good to Know:** You'll see "No LLMs trained on your data" on the sign-up screen and in file-upload prompts. That's the same commitment described here.
</Note>

## Is your data private by default?

<Frame>
  <img src="https://mintcdn.com/chief-2d405d1a/6c2N7JENQEFQ6YbH/images/help/share-visibility.png?fit=max&auto=format&n=6c2N7JENQEFQ6YbH&q=85&s=8452bc89023293b40b5f8f8b35ba92d1" alt="Chief - the chat visibility settings Only you, Specific people, and Everyone in the project" width="1000" height="891" data-path="images/help/share-visibility.png" />
</Frame>

Yes. What you create in Chief belongs to you and your organization. By default a new chat is visible according to its [visibility setting](/help/sharing-visibility/chat-visibility-private-project-restricted) (Only you, Specific people, or Everyone in the project), and you control who can see it.

## How your data is used inside Chief

* **To answer you:** Files and chat content are [sent to the model](/help/how-chief-works-magic-under-the-hood/how-chief-finds-answers-in-your-files-retrieval-citations) so Chief can respond with context.
* **To power features you turn on:** for example, [connecting Google](/help/integrations/integrations-overview) brings mailbox and calendar content into a project. Chats in those projects start **Private** so that content isn't shared with the whole project by default.
* **Within your access boundary:** Chief only shows you content you're allowed to see based on project membership and chat visibility.

## Security and compliance, briefly

Chief is built to support **SOC 2 Type II**, **GDPR**, and **HIPAA** programs. For the full picture, see the [Trust and Security](https://go.chief.bot/trust-and-security) page and the [Compliance overview](/help/security-privacy/compliance-overview-dpa-privacy-policy-terms).

## Frequently asked questions

<AccordionGroup>
  <Accordion title="Will my Files be used to train a public AI model?">
    No. The models Chief uses are not trained on your data.
  </Accordion>

  <Accordion title="Can other people in my organization see my chats automatically?">
    Only according to each chat's visibility setting. **Only you** chats are visible to you alone; **Everyone in the project** chats are visible to anyone with access to the project. You choose.
  </Accordion>

  <Accordion title="Where can I read the formal policies?">
    See the [Privacy Policy](https://chief.bot/privacy) and [Terms of Service](https://go.chief.bot/TOS). For specific retention periods or data-processing terms, confirm the current details with the Chief team.
  </Accordion>
</AccordionGroup>