Step 5 Preview, a 1M-context MoE from StepFun, shows up on OpenRouter

Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and pr

事件进展（1 篇报道）

1. 2026-10-09 00:20
   Hacker News Step 5 Preview, a 1M-context MoE from StepFun, shows up on OpenRouter

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