Standard & Paid Price
Standard Price
| Meter | Standard Price |
|---|---|
| Input price | $1.5000 / 1M tokens |
| Completion price | $10.0000 / 1M tokens |
| Cache read price | $0.3000 / 1M tokens |
| Audio input price | $1.5000 / 1M tokens |
| Audio completion price | $10.0000 / 1M tokens |
Billing details
Vendor list price comparison
Description
StepFun StepAudio 2.5 Realtime — end-to-end speech-to-speech over a WebSocket session at GET /v1/realtime: streaming audio or text in, streaming audio with a text transcript out, with server-side voice activity detection and interruption. Audio is PCM16, 24 kHz, mono; the vendor lists English as the supported language. Set the voice explicitly in session.update: only StepFun's listed voices are accepted.
API endpoints
GET /v1/realtime(realtime)