arXiv cs.CL
7/1/2026

Using AI Agents to Automate Black-Box Audits of Personalization Algorithms at Scale
Short summary
Researchers deploy a framework for black-box auditing of personalization algorithms using generative AI agents as synthetic users with realistic personas grounded in survey data. A study of 1,120 agents on X post-2024 election found the algorithmic feed amplifies toxic, polarizing, and right-leaning content versus chronological feeds, with effects varying by user ideology and demographics. Counterfactual analysis reveals how platform-visible signals like age and location affect content delivery in persona-dependent, non-linear ways.
- •Generative AI agents deployed as synthetic auditors for black-box personalization algorithms
- •X's algorithmic feed amplifies polarizing and toxic political content versus chronological feed
- •Demographic effects are persona-dependent; pooled analysis masks significant subgroup variation
Generated with AI, which can make mistakes.
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