ModelInfo
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Step Audio R1.5

Audio model for deep sound understanding and reasoning that thinks while speaking.

StepFunstep-audio-r1.5Report incorrect data

Specs

Context
—
Max output
—
Input price
$1.43/ 1M tokens
Output price
$15/ 1M tokens
Released
—

Context

Not published

Pricing · USD / 1M tokens

Input
$1.43
Output
$15
Cache read
$0.29
Cache write
—

Modalities

Input
AudioText
Output
AudioText

API

API types
audio

Reasoning

Not published

Info

Status
Active
Released
—
Knowledge cutoff
—

Features

Not published
Source · official docsVerified 2026-10-11

How to call

1 provider

stepfunmodel = step-audio-r1.5

JSON

Standard format
step-audio-r1.5.json
{
  "id": "step-audio-r1.5",
  "object": "model",
  "created": null,
  "owned_by": "stepfun",
  "name": "Step Audio R1.5",
  "api": {
    "types": [
      "audio"
    ]
  },
  "limits": {
    "context": null,
    "input": null,
    "output": null
  },
  "modalities": {
    "input": [
      "audio",
      "text"
    ],
    "output": [
      "audio",
      "text"
    ]
  },
  "reasoning": {
    "supported": null,
    "efforts": []
  },
  "pricing": {
    "currency": "USD",
    "unit": "1M_tokens",
    "input": 1.43,
    "output": 15,
    "cache_read": 0.29,
    "cache_write": null
  },
  "features": [],
  "info": {
    "status": "active",
    "release_date": null,
    "knowledge_cutoff": null,
    "description": "Audio model for deep sound understanding and reasoning that thinks while speaking.",
    "docs": "https://platform.stepfun.com/docs/zh/guides/models/audio",
    "verified_at": "2026-10-11"
  }
}

Official sources

2