一句话摘要
TTS 模型升级，多语言合成更自然，改善说话人相似度和减少音频瑕疵。
详细描述
gpt-4o-mini-tts-2025-12-15 sets a new benchmark for multilingual speech synthesis, producing more natural, human-like speech with fewer artifacts and improved speaker similarity.
原文摘录
Sets a new benchmark for multilingual speech synthesis. Produces more natural, human-like speech with fewer artifacts and improved speaker similarity.