Article · 8 min read

Google Seems More Biased Towards Big Brands Than ChatGPT and Perplexity

Patrick Stox · Ahrefs Free Intermediate

The good news for a small company, quantified: brand size correlates strongly with Google AI Overviews (0.65) but weakly with Perplexity (0.30) and barely at all with ChatGPT (0.15). That gap is the opening a young Indian brand can actually walk through.

  • Web mentions correlate 0.65 with visibility in Google AI Overviews but only 0.30 in Perplexity and 0.15 in ChatGPT.
  • Based on roughly 76.7M AI Overviews, 957k ChatGPT prompts and 953.5k Perplexity prompts from June 2025.
  • The practical read: brand-building buys you Google AI visibility, but ChatGPT and Perplexity are far more open to smaller names.
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The question it answers

  1. SEO used to mean ranking on Google. What does it mean now that buyers ask ChatGPT instead?

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