Generative Engine Optimization at Scale: Measuring Brand Visibility Across AI Search Engines

The article presents a study on Generative Engine Optimization (GEO), focusing on how brands can enhance their visibility across AI search engines like ChatGPT and Claude. Analyzing over 100,000 prompt responses from March to May 2026, the research reveals a three-tier visibility structure where global brands dominate AI citations, while niche brands struggle significantly. Key findings suggest that corporate websites are the primary sources cited, with "best-of" listicles being the most effective content format, highlighting the need for practitioners to adapt their strategies to improve AI search visibility based on brand maturity and platform-specific behaviors.