Step TTS Mini

ttsproprietary

Compact TTS with 9 emotions, 13 styles, 3 languages, 10s voice cloning.

Capabilities

No supported capabilities recorded.

Details

Model IDstep-tts-mini
Provider StepFun
Creator stepfun
Familystep-tts
Licenseproprietary
Statusactive
Typetts
Input modalitiesaudio, text
Output modalitiesspeech
Open weightNo
Parameters—
Architecture—
Max chars—
Sample rate—
Voices—
Languages—
Release date—
Sourceofficial

Endpoints

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

Pricing

0.9 元／万字符 (CNY)

Family Comparison: step-tts

ModelMax charsSample rateVoicesLanguages
Step TTS 2————
Step TTS Mini————

API

GET/v1/models/stepfun/step-tts-mini

Step TTS Mini

step-tts-mini

Compact TTS with 9 emotions, 13 styles, 3 languages, 10s voice cloning.

Changes · 5 entries
step-tts-miniupdateca7a400Nov 2, 2026, 03:02 AM
pricing_notes["0.9 CNY per 10k characters."]→["0.9 元／万字符 (CNY)"]
taglineCompact TTS with 9 emotions, 13 styles, 3 languages, 10s ...
step-tts-miniupdateb2f45bfOct 29, 2026, 03:29 AM
statusdeprecated→active
pricing_notes["0.9 元/万字符 (CNY)."]→["0.9 元／万字符 (CNY)"]
step-tts-miniupdate40decdeSep 16, 2026, 06:38 AM
statusactive→deprecated
step-tts-miniupdatec67ed84Jul 31, 2026, 10:28 AM
pricing_notes["0.9 CNY per 10k characters."]→["0.9 元/万字符 (CNY)."]
taglineCompact TTS with 9 emotions, 13 styles, 3 languages, 10s ...
step-tts-minicreate3e56cf1Apr 26, 2026, 07:23 PM