New data shared by Jonathan Clark of Moving Traffic Media from a Zero Click by Profound session reveals exactly how Claude picks what to cite, and the answer is blunt: it barely picks at all.
Claude’s citations match Brave Search’s top 10 results in 79.2% of cases, with some testing putting the overlap as high as 86.7%. There is no reranking layer and no independent judgment involved. Rank on Brave, and Claude repeats that ranking straight back to the user.
The behavior splits into two clear patterns:
- Search trigger rate. Claude calls live web search in only about 36.6% of prompts, compared to close to 90% for ChatGPT. It searches far less, but predictably.
- Trigger type. Recency prompts like “best XYZ” push Claude to search 81% of the time. Ranking prompts (“top 10…”) hit 67%. Location prompts hit 55%. Comparison prompts (“X vs Y”) hit 51%.

The Brave dependency
Brave runs its own search index, built independently rather than borrowed from Google or Bing. It covers over 30 billion pages with roughly 100 million daily updates. That independence means Brave often surfaces sites that never crack the top of Google, smaller publishers, niche editorial, and privacy-focused sources get more visibility there than elsewhere.
This is why cross-platform overlap is so low. Claude’s citations match ChatGPT’s in only 8% of cases. Yet Claude still lines up with Google rankings 64% of the time, since Brave’s index leans on similar quality signals to Google’s. Practically, this means ChatGPT optimization work rarely transfers to Claude, while Google SEO work mostly does.
There’s a deeper structural reason this matters for testing. Claude’s query fan-outs, the sub-queries it generates internally before searching, are close to deterministic, repeating the same pattern roughly 65% of the time across different users. That consistency turns Claude visibility into something measurable rather than guessed at.
Why This Matters For Content Teams
- Brave rank is now a real KPI
Most teams have never checked their Brave Search position. With Claude pulling almost directly from Brave’s top 10, that ranking now functions as a leading indicator for AI citation, separate from Google Search Console data. - Year signals carry unusual weight
Claude’s fan-out queries show a consistent bias toward year-stamped phrasing. Pages with the current year in the title and headers have a measurable edge in matching those fan-outs. - Determinism means testability
Because fan-outs repeat at a 65% rate, structured A/B testing of titles, headers, and content format against Brave rank movement is now realistic, not theoretical. - ChatGPT visibility does not transfer
An 8% citation overlap between Claude and ChatGPT means teams running a single unified “AI visibility” strategy are likely underperforming on at least one platform. - Google work still pays off twice
The 64% overlap with Google rankings means existing technical and content SEO investment is not wasted. It simply needs a Brave-specific check layered on top.
Bottom line: if you want to show up in Claude’s answers, stop chasing ChatGPT and start checking your Brave Search rank.
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