Speech Synthesis / Quote
Step-Audio 2 API Price Speech Synthesis
StepFun · step-audio-2
| Billing | CNY · 1M tokens |
|---|---|
| Modalities | Audio / Text |
| Deep Thinking | — |
| Verified Date | 2026-10-01 |
| 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.
官方定价页「语音大模型·按 Token 计费」表:输入(缓存未命中)10 元、缓存命中 2 元、输出 70 元每百万 tokens,当前状态为按量计费。
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Monthly Cost Estimate
30 days · no cache hits · list price
Free quotas, tiered pricing, batch discounts, and time-based pricing are not included; refer to official bills.
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- Step-1o-Turbo-Vision ¥2.5 / ¥8
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- StepAudio 2.5 TTS Tiered
- StepAudio 3 TTS Tiered
- StepAudio 3 Realtime Preview (limited-time free) Free
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- StepAudio 2.5 Realtime ¥10 / ¥70
- StepAudio 2.5 Chat ¥10 / ¥25
- Step-1o-Audio ¥25 / ¥60
- Step-Audio-R1.5 ¥10 / ¥105
- StepAudio 3 ASR Max Tiered
- StepAudio 2.5 ASR Tiered
- StepAudio 3 Music Preview (limited-time free) Free
FAQ
How much does the Step-Audio 2 API cost?
Input ¥10/1M tokens, output ¥70/1M tokens
Which input modalities does Step-Audio 2 support?
Audio / Text.
What is the approximate monthly cost of Step-Audio 2?
Depends on volume: light use (1M input + 300K output per day) ≈ ¥930/month; medium (5M + 1.5M) ≈ ¥4,650/month; heavy agents (10M + 3M) ≈ ¥9,300/month. Cache hits, batch discounts and tiered pricing can lower this further.
How does Step-Audio 2 compare with peers on value?
StepFun Step-Audio 2 is competitively priced among comparable models; compare against similar models. See the Pricemon market table for a full comparison.
What use cases suit Step-Audio 2?
Good for: voice-overs, audiobooks, social media, navigation systems, accessibility.
Does Step-Audio 2 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.