StepFunStep-Audio

Step-Audio AQAA

Step-Audio AQAA is a 130B audio-language research release. It generates spoken answers from audio input without a separate transcription-then-synthesis chain.

Research release

Keep two kinds of audio information

The linguistic tokenizer represents phonetic information. The semantic tokenizer preserves acoustic features. The paired streams support direct audio answers and control of spoken expression.StepFun Step-Audio-AQAA model card

Use the release for system research

Practical guidance. This design is useful when studying how an audio model can avoid errors passed between separate ASR and TTS components. It does not remove the need to check the factual content and intelligibility of a spoken answer.

Specifications & access

Step-Audio AQAA specifications
DetailValue and conditions
StatusResearch release
AccessDownloadable
Model identifiersStep-Audio-AQAA
LicenseApache 2.0.StepFun Step-Audio-AQAA model card
Audio representationLinguistic and semantic token streams are interleaved at a 2:3 ratio.StepFun Step-Audio-AQAA model card
TrainingThe card describes supervised stages, preference optimization and model merging.StepFun Step-Audio-AQAA model card

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