Coqui XTTS v2
Coqui XTTS v2 is an open-weights text-to-speech (TTS) API from Coqui, measured by one independent benchmark, Artificial Analysis.
Speech Arena Elo 909 on Artificial Analysis, latency not measured; ranked 107th of 112 in the TTS for Voice Agents 2026 index.
Benchmark summary: 1.8/100, ranked 107th of 112 in the TTS for Voice Agents 2026 index (Listed). Strongest criterion: price, 1 of 5 points.
Rime Mist V2 is a proprietary text-to-speech (TTS) API from Rime, measured by one independent benchmark, Artificial Analysis.
Overall score
1.8 /100
Data checked on September 30, 2026
Updated after each benchmark capture
Every point comes from a public benchmark: sources · methodology
Rime Mist V2 ranks 107th of 112 in the 2026 text-to-speech (TTS) API benchmark, with a score of 1.8/100.
Neither Coval nor Speko measures Rime Mist V2's latency, so it scores 0 of 60 on real-time speed and does not appear in the real-time ranking.
No accuracy measurement: Coval does not measure its word error rate and Speko does not rate its pronunciation robustness, so accuracy counts 0 of 15.
In the Artificial Analysis Speech Arena (capture of October 1, 2026), Rime Mist V2 has an Elo of 909 (±15, 95% confidence) from 2,833 blind comparisons, 85th highest of the 92 models Artificial Analysis rates.
Artificial Analysis lists Rime Mist V2 at $31.1 per 1M characters (47th lowest of the 78 models Artificial Analysis lists a price for).
Coqui XTTS v2 is an open-weights text-to-speech (TTS) API from Coqui, measured by one independent benchmark, Artificial Analysis.
Microsoft VibeVoice 1.5B is an open-weights text-to-speech (TTS) API from Microsoft, measured by one independent benchmark, Artificial Analysis.
Google Neural2 is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.