When Models Lie, We Learn: Multilingual Span-Level Hallucination Detection withPsiloQA
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How a New Multilingual Test Is Teaching AI to Stop Making Up Facts

Ever wondered why AI sometimes makes up facts? A new breakthrough called PsiloQA is changing that. Researchers have built a massive multilingual test that spots those made‑up bits right down to the exact words, and it works in 14 languages. Think of it like a spell‑checker for truth, catching errors the moment they appear, no matter if the AI is answering in English, Spanish or Swahili.

The team used clever automation: first they let a smart model write question‑answer pairs from Wikipedia, then they asked other AIs to answer without any hints, and finally a powerful system compared the replies to the real facts, marking the false fragments. What’s exciting is that simple encoder models trained on this data be…

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