StepAudio 3 Realtime Preview

{
  "id": "stepaudio-3-realtime-preview",
  "object": "model",
  "created": null,
  "owned_by": "stepfun",
  "name": "StepAudio 3 Realtime Preview",
  "api": {
    "types": [
      "realtime"
    ]
  },
  "limits": {
    "context": null,
    "input": null,
    "output": null
  },
  "modalities": {
    "input": [
      "audio",
      "text"
    ],
    "output": [
      "audio",
      "text"
    ]
  },
  "reasoning": {
    "supported": null,
    "efforts": []
  },
  "pricing": null,
  "features": [
    "tools"
  ],
  "info": {
    "status": "preview",
    "release_date": null,
    "knowledge_cutoff": null,
    "description": "Full-duplex voice model for real-time interaction with natural interruption and tool calling; free for a limited time.",
    "docs": "https://platform.stepfun.ai/docs/en/guides/models/stepaudio-3-realtime",
    "verified_at": "2026-10-11"
  }
}