ChatTTS is a speech generation model designed for conversational scenarios, especially for conversational tasks of Large Language Model (LLM) assistants, as well as applications such as conversational audio and video introductions. It supports Chinese and English, and by training with approximately 100,000 hours of Chinese and English data, ChatTTS demonstrates high quality and naturalness in speech synthesis. ChatTTS can be used for a variety of applications, including but not limited to: Conversational tasks of Large Language Model assistants Conversational speech generation Video introductions Educational and training content speech synthesis Any application or service that requires text-to-speech capabilities ChatTTS is trained with approximately 100,000 hours of Chinese and English data. The dataset includes a variety of spoken content, helping the model learn to generate natural and high-quality speech. The diversity and quantity of training data ensure that ChatTTS can effectively handle a variety of speech synthesis tasks.