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ResearchOfficialPreprintarXiv Computers and Society

AI-Powered Browsers Broadly Accurately Summarize News and Reduce Political Bias, Negative Affect

A large-scale audit of 13,777 articles from 15 U.S. news outlets found that AI-powered browsers—Google Chrome (Gemini), Microsoft Edge (Copilot), and Perplexity Comet—produce broadly accurate news summaries. These AI summarizers consistently reduce political bias, negative affect, anger, and fear, while increasing clarity and reducing personal tone in news content. The observed effects are consistent across different browsers, news outlet ideologies, and topics.

Why it matters: The study highlights that AI-powered browsers act as a new class of editorial intermediaries, systematically reshaping news content with potential implications for democratic discourse and AI governance.

Full story at: arXiv Computers and Society