Important
License Notice
This codebase and its associated model weights are released under FISH AUDIO RESEARCH LICENSE. Please refer to LICENSE for more details. We will take action against any violation of the license.
Warning
Legal Disclaimer
We do not hold any responsibility for any illegal usage of the codebase. Please refer to your local laws about DMCA and other related laws.
Here are the official documents for Fish Audio S2, follow the instructions to get started easily.
Important
For SGLang server, please read SGLang-Omni README.
For vLLM Omni server, please read vLLM-Omni Fish Speech S2 Pro Recipe and the User Guide.
Install and configure Fish-Audio S2 by following the instructions here: https://speech.fish.audio/install/
State-of-the-art multilingual text-to-speech (TTS) system, redefining the boundaries of voice generation.
Fish Audio S2 Pro is the most advanced multimodal model developed by Fish Audio. Trained on over 10 million hours of audio data covering more than 80 languages, S2 Pro combines a Dual-Autoregressive (Dual-AR) architecture with reinforcement learning (RL) alignment to generate speech that is exceptionally natural, realistic, and emotionally rich, leading the competition among both open-source and closed-source systems.
The core strength of S2 Pro lies in its support for sub-word level fine-grained control of prosody and emotion using natural language tags (e.g., [whisper], [excited], [angry]), while natively supporting multi-speaker and multi-turn conversation generation.
Visit the Fish Audio website for a live playground, or read our technical report and blog post for more details.