# Fish Audio Changelog - What's New

Stay updated with the latest features, improvements, and releases from Fish Audio. Our changelog documents all updates to our voice cloning, text-to-speech, and AI voice generation platform.

## All Updates (8 releases)

- ### S2 is here. Yeah, It's Open-source.

Fish S2 is a big step beyond S1, redefining expressive voice AI. You can now write any emotion cues anywhere in the text, and hear the speech flow exactly how you direct it.
  
  March 10, 2026 [Use S2 Now](/content/app/text-to-speech/index.html)

- ### Story Studio, Upgraded

Craft long audio effortlessly with the new Story Studio. Add pauses, manage speakers, regenerate clips, and fine-tune every moment with precision.
  
  December 9, 2025 [Create now](/content/app/story-studio/index.html)

- ### Hear S1, the most natural TTS ever

Fish Audio S1 generates lifelike voices that capture emotion, rhythm, and nuance with remarkable realism.
  
  November 9, 2025 [Use S1](/content/app/text-to-speech/index.html)

- ### S1-mini open-source release

S1-mini (0.5B) is now open-source, bringing emotion and tone control in a compact distilled model. It delivers the core capabilities of our flagship S1 (4B), which is available on [Fish Audio](/content/app/index.html).
  
  June 2, 2025

- ### Fish Speech v1.6 is here

v1.6 brings higher stability, emotion support, and improved multilingual performance, now available for instant use online.
  
  March 1, 2025 [Use v1.6](/content/app/text-to-speech/index.html)

- ### v1.4.0 - the most powerful open-source TTS

Trained on 700k+ hours of audio data, Fish v1.4 is the most powerful open-source TTS model supporting more than 8 languages.
  
  September 12, 2024

- ### v1.2.0

Open-source release of both the v1.2 pretrain and SFT model, supporting auto-reranking for stable generation.
  
  July 18, 2024

- ### v1.0.0

Fish's first open-source TTS model release.
  
  April 29, 2024

## March 2026

### S2 is here. Yeah, It's Open-source.

Fish S2 is a big step beyond S1, redefining expressive voice AI. You can now write any emotion cues anywhere in the text, and hear the speech flow exactly how you direct it.
  
  Use S2 NowView on Hugging Face

## December 2025

Your browser does not support the video tag.

### Story Studio, Upgraded

Craft long audio effortlessly with the new Story Studio. Add pauses, manage speakers, regenerate clips, and fine-tune every moment with precision.
  
  Create now

## November 2025

### Hear S1, the most natural TTS ever

Fish Audio S1 generates lifelike voices that capture emotion, rhythm, and nuance with remarkable realism.
  
  Use S1Watch video

## June 2025

### S1-mini open-source release

S1-mini (0.5B) is now open-source, bringing emotion and tone control in a compact distilled model. It delivers the core capabilities of our flagship S1 (4B), which is available on [Fish Audio](/content/app/index.html).
  
  View on Huggingface

## February 2025

### Fish Speech v1.6 is here

v1.6 brings higher stability, emotion support, and improved multilingual performance, now available for instant use online.
  
  Use v1.6

## September 2024

### v1.4.0 - the most powerful open-source TTS

Trained on 700k+ hours of audio data, Fish v1.4 is the most powerful open-source TTS model supporting more than 8 languages.
  
  View on Github

## July 2024

### v1.2.0

Open-source release of both the v1.2 pretrain and SFT model, supporting auto-reranking for stable generation.

## April 2024

### v1.0.0

Fish's first open-source TTS model release.
  
  View on Huggingface

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