Provider

Soniox TTS models

2 text-to-speech (TTS) models, ordered speed first: by speed tier and P95 time to first audio on Coval, then the models Coval does not measure, by name. No combined score.

Data checked on October 22, 2026 · updated after each benchmark capture

Soniox TTS Real-Time v2

Visible delay Proprietary · Soniox

324.9 ms P95

262.7 ms median

Soniox TTS Real-Time v2 is a proprietary text-to-speech (TTS) API from Soniox, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.

Spanish German French Japanese +12

Soniox TTS RT v1

Visible delay Proprietary · Soniox

320.4 ms P95

259.9 ms median

Soniox TTS RT v1 is a proprietary text-to-speech (TTS) API from Soniox, measured by two independent benchmarks: Coval and Speko.

Spanish German French Coval +1