Study: GEO posts can manipulate AI search citations
A new arXiv paper analyzing 17,211 citation instances across 6,356 source domains on 10 AI-search platforms finds that each platform’s top 20 cited domains account for 20.5% to 70.8% of its citations, and that 15 of 22 publishing platforms tied to those domains have low or medium barriers to posting. In follow-up experiments, the researchers got 8 of 10 platforms to cite a fabricated concept within seven days of posting it on preferred domains, and a $14 commercial GEO purchase led one platform to cite planted content within an hour.
Why it matters: It reframes AI-search citation selection as a security question: if posting on a handful of easy-access domains can reliably seed what a platform cites, the gap between ordinary publishing and influencing AI answers is smaller than assumed.
Glossary: GEO
Via arXiv AI-search citations ↗
Posted to the wire October 8, 2026. Edited by Joe Balewski.