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About this paper

Tara Bogavelli, Gabrielle Gauthier Melançon, Katrina Stankiewicz, Oluwanifemi Bamgbose, Fanny Riols, Hoang H. Nguyen, Raghav Mehndiratta, Lindsay Devon Brin and 5 more

EVA-Bench evaluates voice agents in multi-turn audio conversations across three synthetic English-language enterprise domains. It validates simulated caller behavior before scoring task accuracy and conversational experience over five trials per scenario. In clean conditions, none of 12 systems exceeded 0.5 on both EVA-A and EVA-X pass@1; GPT-Realtime-1.5 scored 0.47 and 0.57, respectively. Median pass@k–pass^k gaps were 0.44 and 0.24, respectively, limiting conclusions to tested settings.

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