All Models

StepAudio 2.5 ASR

step

Speech transcription model for accurate audio-to-text and captioning workflows

Providers2
ReleasedApr 24, 2026
Input Modalitiesaudio
Output Modalitiestext

Available Providers (2)

ProviderModel IDInput CostOutput CostContextMax OutputDocs
StepFun (Global)stepaudio-2.5-asr—/MTok—/MTok——
StepFun (China)stepaudio-2.5-asr—/MTok—/MTok——

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output