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Are we paying a "Reasoning Tax" for smarter AI?

This story is from 2026-08-22. It is preserved in the archive; the latest stories are on the live feed.

More reasoning does not automatically mean more factual reliability. OpenAI’s evaluations produced a counterintuitive result: on PersonQA, o3 recorded a 33% hallucination rate, compared with 16% for o1. On SimpleQA, the reported hallucination rate was 51% for o3 and 79% for the smaller o4-mini. The…

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  1. 2026-08-22 04:52 · r/artificial
    Are we paying a "Reasoning Tax" for smarter AI?

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