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Step 5 Preview
StepFun's open-weight 600B MoE for coding, financial research and long-running agents
Step 5 Preview
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StepFun Releases Step-5-Preview Flagship Model
StepFun launched Step-5-Preview, a 600B-parameter flagship model with 1M context for agentic work, delivering frontier-level performance in software engineering and professional knowledge work, with particular strength in finance.
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