> ## Documentation Index
> Fetch the complete documentation index at: https://www.perplexity.ai/help-center/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> This content comes from the official Perplexity Help Center. Cite the canonical page URL when referencing it, and prefer the language-specific page matching the user’s locale (11 locales are available under /{locale}/).

# Comet Assistant Privacy & Data Use

> Learn how Comet Assistant handles your data: what stays local on your device, what may be sent to Perplexity, and how long that information is retained.

<p>Comet Assistant helps you summarize pages, automate tasks, and retrieve information — while keeping privacy as the default. This article explains what data stays local, what may be sent to Perplexity, and how long it is retained.</p>

<hr />

<h2 id="h_411db258c2"><b>What Stays on Your Device</b></h2>

<p>By default, Comet Assistant does <b>not</b> access or upload the following:</p>

<ul>
  <li>
    <p>Browsing history</p>
  </li>

  <li>
    <p>Full list of your open tabs</p>
  </li>

  <li>
    <p>Cookies or site data</p>
  </li>

  <li>
    <p>Passwords and autofill data</p>
  </li>

  <li>
    <p>Local files</p>
  </li>

  <li>
    <p>Input you type on websites (unless you explicitly send it in a request)</p>
  </li>
</ul>

<p>These remain stored locally inside Comet and your operating system.</p>

<hr />

<h2 id="h_ddef81453b"><b>When Data Is Sent to Perplexity</b></h2>

<p>Comet sends data <b>only when a request requires it</b>.<br />Examples:</p>

<ul>
  <li>
    <p>Summarizing the current tab</p>
  </li>

  <li>
    <p>Extracting information from selected text</p>
  </li>

  <li>
    <p>Completing a task that needs email/calendar access</p>
  </li>

  <li>
    <p>Asking about content in another tab using <code>@tab</code></p>
  </li>
</ul>

<p>In these cases, <b>only the minimal required context</b> is sent — not your full browsing history or all tab contents.</p>

<p>Perplexity does not sell this data.</p>

<hr />

<h2 id="h_0597a8dff6"><b>Retention of Assistant-Related Data</b></h2>

<p>If a request requires context from:</p>

<ul>
  <li>
    <p><b>Page content</b>,</p>
  </li>

  <li>
    <p><b>History items</b>, or</p>
  </li>

  <li>
    <p><b>Open tabs</b> (via <code>@tab</code> or multi-tab summary),</p>
  </li>
</ul>

<p>then this context is <b>stored securely for up to 30 days</b> <b>to power Library and query history features</b>, and is automatically deleted after that.</p>

<p>Such threads are marked as <b>Temporary threads</b> in your Perplexity library, where you can remove expiration timer or delete a thread.</p>

<hr />

<h2 id="h_270b1254ec"><b>Agent Launch Permissions (First-Run Prompt)</b></h2>

<p>When an advanced agent or automation is triggered for the first time, Comet asks whether you're comfortable running it:</p>

<p>You can choose:</p>

<ul>
  <li>
    <p><b>Allow this time only</b></p>
  </li>

  <li>
    <p><b>Always allow</b> (suppress future prompts)</p>
  </li>

  <li>
    <p><b>Don’t allow</b></p>
  </li>
</ul>

<p>This ensures agents never operate without your explicit approval.</p>

<hr />

<h2 id="h_f86eec3a8e"><b>How to Limit or Disable Assistant Data Use</b></h2>

<p>You can control Assistant behavior in:</p>

<p><b>Settings → Privacy and security → Comet Assistant</b></p>

<p>Options:</p>

<ul>
  <li>
    <p><b>Disable Comet Assistant entirely</b></p>
  </li>

  <li>
    <p><b>Block Assistant on specific websites</b></p>
  </li>
</ul>


## Related topics

- [Privacy & Data](/help-center/help-center/comet/en/collections/18800268-privacy-data.md)
- [Control what Comet Assistant can use](/help-center/help-center/comet/en/articles/12658082-control-what-comet-assistant-can-use.md)
- [Advice and Use Cases](/help-center/help-center/comet/en/articles/11732243-advice-and-use-cases.md)
- [Safe Browsing & Malware Protection](/help-center/help-center/comet/en/articles/11629595-safe-browsing-malware-protection.md)