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arXiv · 2506.04535

BSBench: will your LLM find the largest prime number?

K. O. T. Erziev
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Abstract

We propose that benchmarking LLMs on questions which have no reasonable answer actually isn't as silly as it sounds. We also present a benchmark that allows such testing and a method to modify the existing datasets, and discover that existing models demonstrate a performance far from the perfect on such questions. Our code and data artifacts are available at https://github.com/L3G5/impossible-bench

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K. O. T. Erziev. 2025-06-05. BSBench: will your LLM find the largest prime number?. https://arxiv.org/abs/2506.04535

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