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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?

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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.
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.

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Is your data private by default?

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

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How your data is used inside Chief

  • To answer you: Files and chat content are sent to the model so Chief can respond with context.
  • To power features you turn on: for example, connecting Google 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.

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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 page and the Compliance overview.

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Frequently asked questions

No. The models Chief uses are not trained on your data.
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.
See the Privacy Policy and Terms of Service. For specific retention periods or data-processing terms, confirm the current details with the Chief team.