#GPT-4o-Audio alternative01/09/2025
StepFun AI Unveils Step-Audio 2 Mini — Open-Source 8B Speech-to-Speech Model That Tops GPT-4o-Audio
'StepFun AI released Step-Audio 2 Mini, an open-source 8B speech-to-speech model that combines unified audio-text tokenization, emotion-aware generation, and retrieval-augmented grounding to beat GPT-4o-Audio on multiple benchmarks.'