Sierra releases 𝜏-i18n, a multilingual benchmark for voice agents

AISierra introduces 𝜏-i18n, which extends its 𝜏-Voice benchmark to Spanish, Brazilian Portuguese, Hindi, Korean, and Mandarin. The benchmark reports task completion, interaction, and generation quality separately, and Korean is the weakest language for all three tested agents.

AIWhy it matters.

The benchmark separates task completion from interaction and speech quality, showing where voice agents fail across five languages beyond what task success reveals.

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Sierra Blog · Soham Ray · sierra.aiPublished Oct 21, 4:35 PM ET · added here 7:30 PM ET

Original title: 𝜏-i18n: Evaluation across languages and beyond task completion

Topics

Multimodal AI Voice & audio Open-source ecosystem Evals & benchmarks