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The Independent UK
The Independent UK
Lifestyle
Nicole Wootton-Cane

AI chatbots spread false information, major new report warns

  • A report by fact-checking charity Full Fact has revealed that popular AI chatbots frequently deliver false, outdated, or poorly sourced answers with misplaced confidence.
  • Researchers tested five leading AI models – Claude, ChatGPT, Gemini, DeepSeek, and Grok – with 22 daily questions over 10 weeks to evaluate their consistency.
  • Errors included DeepSeek incorrectly saying that Sir Keir Starmer was prime minister in September, alongside flawed calculations of migrant arrivals and outdated financial support figures.
  • Full Fact chief executive Chris Morris warned that chatbots use the same confident tone regardless of accuracy, urging developers to ensure models verify live, authoritative sources.
  • OpenAI said that improving factual accuracy remains a major priority.

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