Speech Synthesis / Quote
StepAudio 2.5 Realtime API Price Speech Synthesis
StepFun · stepaudio-2.5-realtime
| 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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- StepAudio 3 TTS Tiered
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- Step-Audio 2 ¥10 / ¥70
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- StepAudio 3 ASR Max Tiered
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FAQ
How much does the StepAudio 2.5 Realtime API cost?
Input ¥10/1M tokens, output ¥70/1M tokens
Which input modalities does StepAudio 2.5 Realtime support?
Audio / Text.
What is the approximate monthly cost of StepAudio 2.5 Realtime?
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 StepAudio 2.5 Realtime compare with peers on value?
StepFun StepAudio 2.5 Realtime is competitively priced among comparable models; compare against similar models. See the Pricemon market table for a full comparison.
What use cases suit StepAudio 2.5 Realtime?
Good for: voice-overs, audiobooks, social media, navigation systems, accessibility.
Does StepAudio 2.5 Realtime 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.