Stepaudio 2.5 Realtime: API pricing, providers and specs
Stepaudio 2.5 Realtime is a audio model by StepFun. One provider serves it: EmpirioLabs AI, at $10 /1M.
A newer version is out: Stepaudio 3 Realtime
How Stepaudio 2.5 Realtime compares
Against the 43 audio models on the site priced the same way.
- Mid-priced: its lowest price is $10 /1M against a median of $6.15; 61% of comparable models cost less.
- Its 262K-token context window is larger than 83% of them (median 128K), about 390 pages of text.
- 1 providers serve it; 0% of comparable models have fewer.
Stepaudio 2.5 Realtime prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
 EmpirioLabs AI | $1.50/1M | $10/1M | $0.30/1M | 262K |
Specs
- Type
- Audio
- Maker
- StepFun
- Inputs
- Text
- Outputs
- Audio
- Context
- 262K≈ 390 pages of text
- Max output
- —
- Capabilities
- —
- Released
- —
- License
- —
- Open weights
- —
Alternatives to Stepaudio 2.5 Realtime
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Stepaudio 2.5 Realtimethis model | $10/1M | 262K | — | 1 |
 Gemini 3.8 Flash TTS | $6.30/1M | 8K | — | 8 |
| Gemini 3.8 Live | $4.50/1M | 131K | — | 3 |
| Gemini 3.1 Flash TTS Preview | $14/1M | 8K | — | 10 |
| Gemini 3.8 Flash-Lite TTS | $4.20/1M | 8K | — | 7 |
 Qwen Audio 3.1 TTS | $3.74/1M | — | — | 1 |
| TTS-1 | $15/1M | 4K | — | 5 |
| Qwen Audio 3.0 Realtime Plus | $6.40/1M | — | — | 1 |
| Qwen Audio 3.1 Realtime Plus | $5.98/1M | 256K | — | 3 |
More from StepFun
GOT-OCR 2.0StepFun$0.05/imgStep 2 16KStepFun$2/1MStep 3.5 FlashStepFun$0.292/1MStep 3.5 Flash 2603StepFun$0.30/1MStep 3.7 FlashStepFun$0.925/1MStep 5 PreviewStepFun$2.70/1MStep3StepFun$2.75/1MStepaudio 2.5StepFun$3.50/1MStepaudio 2.5 Realtime FAQ
The lowest price for Stepaudio 2.5 Realtime is $10 /1M, at EmpirioLabs AI.
Stepaudio 2.5 Realtime reads up to 262K tokens per request.
We have not found Stepaudio 2.5 Realtime's weights published by its maker.
1 API providers serve Stepaudio 2.5 Realtime. Compare their prices above, or open a provider to see everything it offers.
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