StepFun
Company models
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Step 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.NewTextReleased 13d ago
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ACE-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 VRAMNewAudioReleased 14d ago
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Step-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 3mo ago
