StepAudio 2.5 TTS

ttsproprietary

Contextual text-to-speech with zero-shot voice cloning from 3 seconds of audio. Dual-layer prosody and emotion control.

Capabilities

No supported capabilities recorded.

Details

Model IDstepaudio-2.5-tts
Provider StepFun
Creator stepfun
Familystepaudio
Licenseproprietary
Statusactive
Typetts
Input modalitiesaudio, text
Output modalitiesspeech
Open weightYes
Parameters—
Architecture—
Max chars—
Sample rate—
Voices—
Languages—
Release date—
Sourceofficial

Endpoints

audio speechPOST
https://api.stepfun.com/audio-speech

Pricing

5.8 元／万字符 (CNY)

Family Comparison: stepaudio

ModelLanguages
StepAudio 2 ASR Pro—
StepAudio 2.5 ASR—
StepAudio 2.5 TTS—

API

GET/v1/models/stepfun/stepaudio-2.5-tts