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StepAudio 2.5 TTS

stepaudio-2.5-tts

SPEECH Speech Proprietary (API-only)

StepAudio 2.5 TTS (stepaudio-2.5-tts) is a speech model from stepfun; proprietary (API-only); input text; output audio.

Specifications

Weights
Proprietary (API-only)
Input modalities
text
Output modalities
audio
Release date
2026-04-16

Provenance

models-dev
Last verified: 2026-10-30

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