CFish Audio, a leading company specializing in AI audio technology, officially launched its latest Text-to-Speech (TTS) model, OpenAudio S1, on June 3, 2025. This model sets a new benchmark for voice generation technology with its highly natural speech output and excellent emotional expressiveness, aiming to provide developers and enterprises with high-performance and cost-effective solutions.
Breakthrough Scale and Performance
OpenAudio S1 is trained on more than 2 million hours of audio dataset, enabling it to accurately capture diverse language styles, accents, and emotional expressions. The model has two versions: the full version S1 with 4 billion parameters, designed for high-performance needs; and the S1-mini with 500 million parameters, optimized for computational efficiency, suitable for resource-constrained scenarios. This flexible design allows it to meet a wide range of demands from large enterprise applications to lightweight devices.
Through advanced architecture design and Reinforcement Learning with Human Feedback (RLHF) technology, OpenAudio S1 has significantly improved the naturalness, tonal fluency, and emotional richness of speech. CFish Audio stated that the model performs excellently in dialog interaction, storytelling, and content creation, applicable in various fields such as virtual assistants, audiobooks, games, and multimedia content generation.
Core Features
Massive Data Support: Trained on 2 million hours of audio, covering a wide range of languages and emotional expressions.Dual Version Models: S1 with 4 billion parameters provides top-tier performance, while S1-mini balances efficiency and quality.Emotionalized Speech: RLHF technology endows the model with the ability to generate emotionally rich speech, enhancing user interaction experiences.Efficient Cost: Optimizes computational resource requirements, ensuring high-quality output while reducing deployment costs.
The release of OpenAudio S1 consolidates CFish Audio's leadership position in the generative AI field. With its balance between performance and cost, this model is expected to promote the widespread application of voice generation technology in industries such as education, entertainment, and customer service. Industry insiders believe that OpenAudio S1 will help develop more humanized AI interactive experiences, meeting the market's urgent demand for high-quality voice solutions.
Availability and Prospects
CFish Audio has made OpenAudio S1 available to global developers and enterprises, with relevant information accessible through official channels. This launch reflects CFish Audio's ongoing efforts to drive innovation in AI audio technology and enhance human-computer interaction experiences.
As the demand for voice generation technology continues to grow, OpenAudio S1, with its outstanding performance and economic benefits, is expected to become an industry benchmark, opening up new possibilities for the next generation of voice applications.