Pronunciation Robustness measures whether Text to Speech models correctly pronounce challenging text across four categories, with human reviewers judging each clip against pre-agreed accepted pronunciations. Drama 3 Preview leads overall at 93.2%.
➤ Standalone Terms: Drama 3 Preview ranks #1 at 95.9%, ahead of Eleven v3 Conversational at 95.1% and Gemini 3.1 Flash TTS at 93.7%.
➤ Preserving Exact Sequences: Drama 3 Preview ranks #1 at 86.3%, ahead of SpaceXAI TTS at 85.7% and HeyGen Voice at 83.4%.
➤ Expanding Shorthand: Drama 3 Preview ranks #2 at 93.6%, behind Eleven v4 at 94.1% and ahead of Eleven v4 Turbo at 91.9%.
➤ Contextually Appropriate: Drama 3 Preview scores 95.3%, with Gemini 3.8 Flash TTS leading at 97.9%.
