How do chatbots’ citation patterns change over time?
Share of answers with a citation, each day.
GPT-5Claude Sonnet 5Gemini 3.5 FlashGrok 4.5Muse Spark 1.2
Position over time
Average position each day on one yes-or-no question (+1 yes, −1 no).
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How often do chatbots cite external sources?
Share of answers with at least one link/citation.
Most-cited websites
Domains by number of citations.
mit.eduAcademic54
washingtonpost.comNews and media31
yale.eduAcademic22
stanford.eduAcademic21
etcjournal.comNews and media14
arxiv.orgAcademic13
washington.eduAcademic12
ucsd.eduAcademic10
nature.comAcademic9
phys.orgNews and media8
brown.eduAcademic8
brookings.eduNonprofits and think tanks6
springer.comAcademic6
psu.eduAcademic6
emerald.comAcademic6
pnas.orgAcademic6
technologyreview.comNews and media4
researchgate.netAcademic4
umich.eduAcademic4
sfexaminer.comNews and media4
What kinds of sources do chatbots use?
Share of each chatbot’s citations by type of publisher.
News and mediaAcademicCommercial contentGovernmentNonprofits and think tanksCompaniesSocial media and videoForums and Q&ALow provenanceNot yet classified
Which way the sources point
On yes-or-no questions, whether what each citation backs points to yes, to no, or neither.
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