Coding & apps
阶跃星辰 StepFun
StepFun open platform for text, multimodal, speech and music model APIs, including Step and StepAudio.
Offers
StepFun StepAudio 3 preview models are free for a limited time
Four StepAudio 3 preview models free until Nov 17 Beijing morning
- Eligible plans
- stepaudio-3-realtime/chat/gen/music preview
- Eligibility
- StepFun platform users; personal accounts usually need real-name verification for speech features
- Benefit duration
- Free through 11:59:59 Beijing time on 2026-11-17; preview IDs then retire for paid production versions
- Claim by
- 2026-11-17
What you can do
Builders working on realtime voice, TTS, audio generation or music creation.
Get started
Sign up on the StepFun platform, complete verification where required, create an API key, then call the listed model.
Sources
- platform.stepfun.com2026-11-09
- platform.stepfun.com2026-11-09