New benchmark finds automated evaluation of tool-using LLM agents often unreliable; GPT-4o-mini surpasses heuristic judg...

New benchmark finds automated evaluation of tool-using LLM agents often unreliable; GPT-4o-mini surpasses heuristic judging, and runtime interceptors cut hallucinations by 24 percentage pointsSource: arXiv cs.MAhttps://arxiv.org/abs/2604.16706#MachineLearning

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