# StepFun: step-tts-mini — API on ChinaAPI

> Step TTS Mini — cost-efficient expressive speech synthesis for Chinese, English, Japanese, Cantonese, and Sichuanese, with official and cloned voices.

- Canonical page: https://chinaapi-ru.com/models/step-tts-mini/
- Model ID: `step-tts-mini`
- Type: speech synthesis (TTS)
- Modalities: Text input, audio output
- Capabilities: Audio, Text-to-Speech, Multilingual, Voice Cloning, Style Control
- Billing: $0.125 per 10k characters (USD)
- Endpoint: `POST https://api.chinaapi-ru.com/v1/audio/speech` (OpenAI-compatible speech endpoint)
- Pricing basis: The displayed media rate may include a service margin covering provider input/output billing, payment processing, chargeback exposure, and operations. Any margin is included in the displayed rate and is not added separately.
- Access: no mainland-China account or phone number required; $2 free trial credit
- Sign up: https://dash.chinaapi-ru.com/register?utm_source=chinaapi&utm_medium=model-md&utm_campaign=step-tts-mini

## Quickstart

```
curl -X POST https://api.chinaapi-ru.com/v1/audio/speech \
  -H "Authorization: Bearer sk-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "step-tts-mini",
    "voice": "cixingnansheng",
    "input": "（轻声）Welcome to ChinaAPI. 今天我们来测试自然语音。",
    "response_format": "mp3"
  }' \
  --output speech.mp3
```

## FAQ

**How do I use step-tts-mini?**
Use step-tts-mini through ChinaAPI with an API key and the OpenAI-compatible endpoint shown on this page.

**How much does step-tts-mini cost?**
step-tts-mini is $0.125 per 10k characters, paid in USD. The live pricing page is authoritative. The displayed media rate may include a service margin covering provider input/output billing, payment processing, chargeback exposure, and operations. Any margin is included in the displayed rate and is not added separately.

**Does step-tts-mini need a Chinese account?**
No. ChinaAPI provides access without a mainland-China account or phone number and includes a $2 free trial. Check live pricing for the displayed USD rate.

---
Markdown twin of https://chinaapi-ru.com/models/step-tts-mini/ — generated by scripts/gen_model_pages.py. Full catalog: https://chinaapi-ru.com/llms-full.txt