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  2. Story2 reports · 1 facts

    StepFun releases the StepAudio 3 Music music generation foundation model

    On September 16, 2026, StepFun released the StepAudio 3 series of audio models, which includes the music generation foundation model StepAudio 3 Music. According to official information, the series comprises 5 audio models in total, covering real-time speech, speech recognition, speech generation, audio generation, and music. The company also disclosed the performance of the other models in the series: Realtime reached 98.9% and 99.7% on Artificial Analysis's Conversational Dynamics and Speech Reasoning respectively, ranking first in both; ASR's word error rate is 1.7%, matching the best score on the leaderboard. The company states that the series can be used to build voice agents capable of handling interruptions, reasoning while speaking, and calling tools, and it is now available through the Voice AI Lab and blog, with the API also open. There are currently no subsequent development facts.

    On September 16, 2026, StepFun released the StepAudio 3 series of audio models, which includes the music generation foundation model StepAudio 3 Music. According to official information, the series comprises 5 audio models in total, covering real-time speech, speech recognition, speech generation, audio generation, and music. The company also disclosed the performance of the other models in the series: Realtime reached 98.9% and 99.7% on Artificial Analysis's Conversational Dynamics and Speech R

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