<p>➀ A Columbia Journalism Review study reveals generative AI search engines like ChatGPT, Perplexity, and Gemini provided incorrect answers to over 60% of queries, with Grok 3 failing 94% of tests; </p><p>➁ Premium AI tools performed worse than free versions, often delivering overly confident yet inaccurate responses; </p><p>➂ These tools bypassed source citations, fabricated links, and disrupted traffic to original content providers, challenging digital content ecosystems.</p>