Voice Arena Benchmark: Gradium Tops 10 TTS Models With 231ms Median Latency

mattturck · x · 2026-09-08

Voice Arena publicly benchmarked 10 TTS models on latency, with Gradium landing #1: the lowest p50 at 231ms and the tightest spread across p25/p50/p75.

Gradium notes latency is one of the first things developers measure when evaluating TTS, and the benchmark was run in public by @voicearenaai.

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