StepFun open-weights Step 5 Preview: 600B, 27B active
Why it matters
Sparse MoE with up to 1M tokens of context for repo-level coding, long-horizon agents and finance. Serving examples start at four B300 GPUs (FP8) via vLLM or SGLang; StepFun Model License 1.0.
Read the source: Hugging Face / StepFun (opens in a new tab)
All hits from 16 Oct 2026More Open ModelsGet the daily hits by email