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
reddit.com fell from 5.7% to 2.8% of Perplexity citations, a move the other assistants did not match.
First seen Jul 20, 2026. Seen through Oct 3, 2026.
reddit.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 1.5% of answers; Perplexity did not say whether it searched on 0.1% of answers; Gemini said it did not search on 4.0% of answers; Gemini did not say whether it searched on 0.3% of answers; Claude did not say whether it searched on 14% of answers; Grok did not say whether it searched on 0.6% of answers.
Only ChatGPT reports when a cited page was published; 32% of its citations carry a date.
reports its searches on 95% of answers, 19% use a site: filter
reports its searches on 95% of answers, 0.0% use a site: filter
reports its searches on 1.1% of answers, 0% use a site: filter
Only ChatGPT, Gemini, and Claude report the searches they ran.
What kinds of sources get cited
ChatGPT
- Editorial
- 3.1%
- Community
- 12.2%
- Reference
- 10.6%
- Institutional
- 16.1%
- Company website
- 31.5%
- Other source
- 26.5%
Perplexity
- Editorial
- 12.1%
- Community
- 9.4%
- Reference
- 2.0%
- Institutional
- 6.0%
- Company website
- 38.4%
- Other source
- 32.1%
Gemini
- Editorial
- 7.7%
- Community
- 16.4%
- Reference
- 2.6%
- Institutional
- 4.5%
- Company website
- 36.7%
- Other source
- 32.1%
Google AI Mode
- Editorial
- 5.6%
- Community
- 22.8%
- Reference
- 1.9%
- Institutional
- 6.0%
- Company website
- 47.9%
- Other source
- 15.8%
Grok
- Editorial
- 3.2%
- Community
- 7.0%
- Reference
- 4.2%
- Institutional
- 2.5%
- Company website
- 45.7%
- Other source
- 37.4%
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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