Gemini 3.8 Flash TTS ranks first on Artificial Analysis pronunciation benchmark at 89.5%

On Artificial Analysis’s Pronunciation Robustness benchmark, Gemini 3.8 Flash TTS scores 89.5% and ranks first. Gemini 3.1 Flash TTS scores 88.2%, SpaceXAI TTS 87.6%, and Gemini 3.8 Flash-Lite TTS 87.4%.

Gemini 3.8 Flash TTS leads Contextually Appropriate pronunciation at 97.9% and Expanding Shorthand at 86.1%. SpaceXAI TTS leads Preserving Exact Sequences at 85.7%, and Qwen-Audio-3.0-TTS-Plus leads Standalone Terms at 95.5%.