Voice Arena(@voicearena_ai):Cartesia Sonic-3.6 is the #1 TTS model on the Voice Arena US English 🇺🇸 Leaderboard. It debuts at 1085 Elo, in a statistical tie with Google DeepMind's Gemini 3.1 Flash TTS, and ahead of its own Sonic-3.5, Simba 3.2 and Grok TTS. It holds the top spot as a real-time model. Sonic-3.6 is the latest TTS model from @cartesia. The model has been highly preferred among raters on @voicearena_ai. Results backed by 1,400+ blind, head-to-head listener votes across two languages 🧵

Voice Arena

@voicearena_ai

Independent evals, research and analysis for voice AI. We evaluate models in the conditions they get deployed in, and work with labs to fix what breaks.

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Voice Arena@voicearena_ai

2026.08.27 16:56

Cartesia Sonic-3.6 is the #1# TTS model on the Voice Arena US English 🇺🇸 Leaderboard. It debuts at 1085 Elo, in a statistical tie with Google DeepMind's Gemini 3.1 Flash TTS, and ahead of its own Sonic-3.5, Simba 3.2 and Grok TTS. It holds the top spot as a real-time model. Sonic-3.6 is the latest TTS model from @cartesia. The model has been highly preferred among raters on @voicearena_ai. Results backed by 1,400+ blind, head-to-head listener votes across two languages 🧵

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