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Step Audio EditX


Step Audio EditX is StepFun's text to speech model. An audio editing model from StepFun that applies instruction-guided modifications to audio content.
Specifications
Canonical IDstep-audio-editx
TypeText to Speech
StatusActive
CreatorStepFunStepFun
Input ModalitiesText
Output ModalitiesAudio
Benchmarks
Elo Rating
1104
#124

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text·
Image·
Audio
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Step Audio 2.5 TTSAvailable
Step Audio EditXCurrent

Model IDs