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Learn how to set up and use the Step 5 Preview open weights model from StepFun, a 600B parameter sparse Mixture-of-Experts model with 27B active parameters and 1M token context window.
StepFun has launched Step 5 Preview, a 600B-parameter MoE model with 27B active parameters and a 1M token context window, targeting long-horizon agentic tasks in software engineering, finance, and knowledge work.
