Artificial Analysis launches Controlled Voice Arena for TTS with 8 fixed cloned voices
ArtificialAnlys · x · 2026-11-07
Artificial Analysis launched a Controlled Voice Leaderboard that blind-tests TTS models using the same 8 cloned voices (4 US, 4 UK), letting listeners compare speech quality fairly across models.
- Accent matters a lot: Lightning V3.1 Pro scores 94 Elo points higher in US English, Qwen-Audio-3.1-TTS-Plus 66 points higher; Soniox TTS Real-Time v2 scores 51 points higher in UK English, Speech 2.8 Turbo 49.
- Overall top 3: HeyGen Voice (1188), Qwen-Audio-3.1-TTS-Plus (1180), HeyGen Voice Turbo (1172).
- Takeaway: evaluate TTS models in the accent relevant to your use case, or rankings may mislead.
Related event: Accent Matters: 49 TTS Models Tested in Controlled Voice Arena(4 posts)→
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