What AI assistants actually cite
Updated daily. The same prompts run against five assistants every day, so a change on one is visible against the other four.
The latest change in how an assistant sources answers
youtube.com fell from 5.3% to 2.7% of Perplexity citations, while the other assistants held.
First seen Jul 28, 2026. Still standing on the latest check.
youtube.com's share of citations, by assistant
Share of all cited sources, 7-day rolling average
Claude stops where we no longer see enough daily activity to report a share. The line ends rather than continuing at zero, which would claim a measurement we do not have.
How each assistant answers
Rates over every answer in the range. ChatGPT did not say whether it searched on 0.8% of answers; Perplexity did not say whether it searched on 0.1% of answers; Gemini said it did not search on 2.5% of answers; Gemini did not say whether it searched on 0.2% of answers; Claude did not say whether it searched on 11% of answers.
Only ChatGPT reports when a cited page was published; 38% of its citations carry a date.
reports its searches on 2.7% of answers, 12% use a site: filter
reports its searches on 20% of answers, 0.0% use a site: filter
Only ChatGPT and Gemini report the searches they ran.
What kinds of sources get cited
ChatGPT
- Editorial
- 6.3%
- Community
- 5.2%
- Reference
- 12.5%
- Institutional
- 16.9%
- Company website
- 43.0%
- Other source
- 16.0%
Perplexity
- Editorial
- 9.1%
- Community
- 13.0%
- Reference
- 5.5%
- Institutional
- 7.6%
- Company website
- 41.5%
- Other source
- 23.3%
Gemini
- Editorial
- 6.2%
- Community
- 20.8%
- Reference
- 2.4%
- Institutional
- 8.2%
- Company website
- 43.4%
- Other source
- 18.9%
Google AI Mode
- Editorial
- 5.9%
- Community
- 30.0%
- Reference
- 3.3%
- Institutional
- 7.5%
- Company website
- 46.8%
- Other source
- 6.6%
Measured over the past 7 days, with every share averaged across the websites we track, so a change in what is being measured cannot move a number. The same kinds sit in the same order on every card, so a row compares across assistants. Claude did not have enough activity this week to break down.
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