Gemini 3.8 Flash TTS takes the #1 spot on the Artificial Analysis Pronunciation Robustness benchmark at 89.5%, ahead of Gemini 3.1 Flash TTS at 88.2%, SpaceXAI TTS at 87.6%, and Gemini 3.8 Flash-Lite TTS at 87.4%.

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

Listen to examples from our Pronunciation Robustness benchmark below ⬇️