Speech Synthesis / Quote
StepAudio 3 TTS API Price Speech Synthesis
StepFun · stepaudio-3-tts
Input · Cache Miss
¥2.5 /10K chars
Output
¥0 /10K chars
Cache Hit Input
— /10K chars
| Billing | CNY · 10K chars |
|---|---|
| Modalities | Text / Audio |
| Deep Thinking | — |
| Verified Date | 2026-09-20 |
| Official pricing page | platform.stepfun.com/docs/zh/guides/pricing/details ↗ |
Source text: the note below is the model's official text, kept in its original Chinese and not translated.
新一代文本转语音模型(官方定价页Speech Synthesis表):2.5 元/10K chars;语音复刻 9.9 元/音色(试听仅收合成费)。
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FAQ
How much does the StepAudio 3 TTS API cost?
Input ¥2.5/10K chars, output ¥0/10K chars
Which input modalities does StepAudio 3 TTS support?
Text / Audio.
How does StepAudio 3 TTS compare with peers on value?
StepFun StepAudio 3 TTS is priced low among comparable models; compare against similar models. See the Pricemon market table for a full comparison.
What use cases suit StepAudio 3 TTS?
Good for: voice-overs, audiobooks, social media, navigation systems, accessibility.
Does StepAudio 3 TTS have a free tier?
Check StepFun's official pricing page for the latest free quota, trial policy and tiered pricing. Policies differ by vendor and change over time.