OpenAI Puzzled as New Models Show Rising Hallucination Rates

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By msmashApr 18, 2025, 9:40 pm493 ptsHotTop
OpenAI's latest reasoning models, o3 and o4-mini, hallucinate more frequently than the company's previous AI systems, according to both internal testing and third-party research. On OpenAI's PersonQA benchmark, o3 hallucinated 33% of the time -- double the rate of older models o1 (16%) and o3-mini (14.8%). The…

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