# StepFun Launches New Voice Generation Model StepAudio 2.5 TTS

- Category: Flash (快讯)
- Published: 2026-04-16T11:54:00.000Z
- Source date: 2026-04-16
- HTML: https://www.88z.ai/en/news/flash-20260416-712e8cc0f2edb354
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StepFun has released the new StepAudio 2.5 TTS voice generation model, featuring global and in-text context control along with zero-shot cloning. Users can precisely adjust voice details via natural language, enabling a shift from mere voice reproduction to creative expression, while supporting high-quality speech generation for any voice without retraining.

## At a glance

- Supports precise control of voice emotion and rhythm details via natural language
- Features zero-shot cloning for any voice timbre without retraining

## The update

StepFun has officially launched StepAudio 2.5 TTS, a new-generation voice generation model. It features three core capabilities: global context control, in-text context control, and zero-shot cloning. With these features, users can precisely adjust details such as emotional tone, rhythm, pauses, and stress using natural language. This technological breakthrough enables a leap from simply reproducing voices to creatively expressing them. Furthermore, the model supports zero-shot cloning for any voice timbre, allowing high-quality speech generation without the need for retraining, thereby significantly enhancing the flexibility and efficiency of voice production.

## Sources

- [阶跃星辰](https://mp.weixin.qq.com/s/8SKwa5105umsFeIiUz-eEg?click_id=139&scene=1) (2026-04-16)

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