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# What's New in Advanced Deep Research

> Advanced Deep Research is a major update to Perplexity's Research feature, introducing improved accuracy, expanded capabilities, and a redesigned interface.

<h2 id="h_5f64e6e738"><b>Improved Research Quality</b></h2>

<p>Advanced Deep Research delivers more comprehensive and accurate reports. We've tested it against industry benchmarks, where it matches or outperforms competitors on tasks including fact-finding, product comparisons, academic research, and professional due diligence.</p>

<p>The update focuses on depth. Advanced Deep Research searches more sources, cross-references information, and produces reports suited for professional work.<br />​</p>

<h2 id="h_f967cbab00"><b>Expanded Capabilities</b></h2>

<p>Deep Research can now:</p>

<ul>
  <li>
    <p>Run calculations and analyze data with an improved code sandbox</p>
  </li>

  <li>
    <p>Process and work with uploaded documents directly</p>
  </li>

  <li>
    <p>Browse more of the web to find information from harder-to-reach sources</p>
  </li>
</ul>

<p>These additions handle tasks that previously required manual work.</p>

<h2 id="h_89c71a1718">Which Models Are Used</h2>

<p>All subscribers now use our most capable models with Deep Research:</p>

<ul>
  <li>
    <p><b>Max subscribers</b> get Opus 4.6 Thinking</p>
  </li>

  <li>
    <p><b>Pro subscribers</b> get 4.5 Thinking gradually<br />​</p>
  </li>
</ul>

<p>Usage limits have been adjusted to allocate more computing power per session, so you get deeper insights and higher-quality results.</p>

<h2 id="h_41bc4f719d"><b>What Else Is New</b></h2>

<p>Deep Research has a new user experience:</p>

<ul>
  <li>
    <h3 id="h_a32ac84024"><b>Clarifying questions</b></h3>

    <p>For broad queries, Research now asks clarifying questions before starting—helping deliver relevant results on the first attempt.</p>
  </li>

  <li>
    <h3 id="h_ae0e5dc333"><b>Follow-up questions during research</b></h3>

    <p>You can add follow-up questions while research is still running, rather than waiting for completion.</p>
  </li>

  <li>
    <h3 id="h_c63cf22e69">See Research Progress</h3>

    <p>A new progress display shows which sources are being read, what's being learned, and how the report is coming together.</p>
  </li>

  <li>
    <h3 id="h_fdf88eb60c">Key Findings as You Go</h3>

    <p>Key findings appear as research progresses, so you can start reviewing information before the final report is ready.</p>
  </li>

  <li>
    <h3 id="h_1476e9cbb8"><b>Reports You Can Edit and Share</b></h3>

    <p>Your research reports now stream directly into a file, where you can edit, refine, and share them.</p>
  </li>
</ul>

<h2 id="h_8343766b08"><br /><b>When to Use</b> Deep Research</h2>

<p>Deep Research is designed for knowledge workers, researchers, and students who need in-depth analysis. It adapts its depth, tone, and format based on the type of work being done—whether that's writing a thesis, preparing a market analysis, or exploring a complex topic.</p>