The Four-Index Reality: Why AI Search Isn't One Thing
Originally published on rikuq.com. Republished here for Dev.to's readers. The most consequential SEO observation of 2026 is also the simplest: AI search is not one thing. When you ask ChatGPT a question, it queries Bing. When you ask Gemini the same question, it queries Google. When you ask Claude, it uses Brave Search and Anthropic's own crawl. When you ask Perplexity, it queries an index Perplexity built and maintains itself. Five visible AI search surfaces. Four genuinely different underly...
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