Model Catalog › stepfun
Step TTS 2
step-tts-2
SPEECH
Speech
Proprietary (API-only)
Step TTS 2 (step-tts-2) 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
- 2026-03-01
Provenance
models-dev
Last verified: 2026-10-30
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