Language tested
6 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
6 of the 119 text-to-speech (TTS) models in this benchmark were tested in Norwegian by Artificial Analysis (controlled-voice arena) or Speko (multilingual board). A model missing from this page was not tested in Norwegian: that does not mean it cannot speak Norwegian.
A model is listed here only when an independent benchmark measured its output in Norwegian. The list is ordered speed first, on Coval's English latency measurements: no public source measures latency in Norwegian. The model pages give every measurement and its date.
Cartesia Sonic 3.5 is a proprietary text-to-speech (TTS) API from Cartesia, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.
ElevenLabs Eleven v3 Conversational is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by two independent benchmarks: Artificial Analysis and Speko.
Google Gemini 3.1 Flash TTS is a proprietary text-to-speech (TTS) API from Google, measured by two independent benchmarks: Artificial Analysis and Speko.
MiniMax Speech 2.8 HD is a proprietary text-to-speech (TTS) API from MiniMax, measured by two independent benchmarks: Artificial Analysis and Speko.
OpenAI GPT-4o mini TTS is a proprietary text-to-speech (TTS) API from OpenAI, measured by two independent benchmarks: Coval and Speko.
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.