AI models such as ChatGPT routinely misrepresent news events, providing faulty responses to questions almost half the time, a study has found.

The study published on Wednesday by the European Broadcasting Union (EBU) and the BBC assessed the accuracy of more than 2,700 responses given by OpenAI’s ChatGPT, Google’s Gemini, Microsoft’s Copilot, and Perplexity.

Twenty-two public media outlets, representing 18 countries and 14 languages, posed a common set of questions to the AI assistants between late May and early June for the study.

Overall, 45 percent of responses had at least one “significant” issue, according to the research.

Sourcing was the most common problem, with 31 percent of responses including information not supported by the cited source, or incorrect or unverifiable attribu

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