AI Visibility Index: September 2026
ChatGPT cut Reddit's share of its citations in half over the summer.
12.1%Reddit's share of ChatGPT citations in September, down from 28.5% in July

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Original data on how AI search engines answer questions and which sources they cite: monthly indexes and one-off studies from AskWatch.
ChatGPT cut Reddit's share of its citations in half over the summer.

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When people ask AI about software, tech media get 70% of the citations. Review marketplaces get 18%.

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