StepFun Releases Step 5 Preview Open Weights: 600B MoE, 27B Active, 1M Context
StepFun released Step 5 Preview open weights: a 600B MoE with 27B active parameters and 1M context.
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StepFun Launches Step 5 Preview: A 600B-Total, 27B-Active MoE Model With 1M Context for Long-Horizon Agentic Work
StepFun launched Step 5 Preview, a 600B MoE model with 1M context for agentic work, claiming cost efficiency with open weights coming in October.
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