Overview
The audio-reasoning research update to Step-Audio-R1, with a technical report and accompanying evaluation benchmarks released on 2026-04-29.
Step-Audio-R1.5
The audio-reasoning research update to Step-Audio-R1, with a technical report and accompanying evaluation benchmarks released on 2026-04-29.
The official repository currently exposes a technical report and evaluation benchmarks, but does not mark inference code and weights as formally released.
MODEL NUMBER346
- First public date
- 2026-04-29
- Organization
- StepFun
- Family
- StepAudio
01
Specifications
Only published specifications are shown.
- Input modalities
- Text · Audio
- Output modalities
- Text
- Open weights
- No
- Status
- Preview
02
Overview
PreviousStep-Audio-R1.1— · — ctx
CurrentStep-Audio-R1.5— · — ctx
04
Architecture & capabilities
Model capabilities
Native audioReasoning
05
Release history
The Step-Audio-R1.5 technical report and evaluation benchmarks were published.
View source06
Related models
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07
Sources
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