Step models
Browse all models from this model family.
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By StepFunStep 3.5 Flash is StepFun’s open source sparse MoE LLM, with 196B total parameters but 11B active per token, tuned for fast agentic reasoning, coding and long context work while staying efficient.TextReleased 4mo ago
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By StepFunACE-STEP v1.5 is an open source, super fast music foundation model that uses a hybrid language model plus diffusion transformer pipeline to turn short prompts into multi minute songs, running on consumer GPUs with under 4 GB VRAMAudioReleased 4mo ago
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By StepFunStep-Audio-EditX is a text-guided audio editor for speech, music, and effects. Describe the change and it performs precise, time-aligned edits with low latency.AudioReleased 7mo ago
