Google Gemini 3.8 Flash TTS Takes #1 in Pronunciation Robustness

Google DeepMind released Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS, two text-to-speech models featuring voice replication and support for 100 languages. The Flash TTS model scored 89.5% on the Pronunciation Robustness Benchmark, taking the top spot from the previous leader, Gemini 3.1 Flash TTS. It also debuted at #2 on the Provider Voice Arena Leaderboard with an Elo of 1,263, while the Flash-Lite version ranked #6 with 1,236. The models are available via the Gemini API and AI Studio with a library of over 2,000 voices. Gemini 3.8 Flash TTS costs $32.98 per 1 million characters, and Flash-Lite is $22.07 per 1 million characters, both priced higher than the $18.31 rate for Gemini 3.1 Flash TTS but below Eleven v3 at $100 per 1 million characters. In terms of speed, the Flash model processes 44.1 characters per second, roughly 2.7 times faster than real-time. However, it trails other competitors such as Falcon 2, which processes 204.9 characters per second, and Luna TTS at 153.5 characters per second.