Voice TTS Model Tops Hindi Customer Service

auto_grad_ · x · 2026-07-10

smallestAI's Lightning 3.1 Pro ranked first in the Hindi real-time TTS customer service category in Voice Arena, outperforming competitors like Sarvam and Cartesia in blind testing.

The post also shared scoring and deployment specs: it achieved a Bradley-Terry Elo of 1101 (±24) across 478 blind matches, supporting 150ms time-to-first-byte, 44.1kHz output, and roughly 29 languages, tailored for voice agents, IVR, and customer support scenarios.

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