ST
StepFun
Step 5 Preview
Text Generation
Popular
Text modelPopularReasoningToolsVisionOpen Weights1M context
Step 5 Preview is StepFun’s flagship AI model for agentic coding, professional knowledge work, and financial analysis.
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$1/1M tokens
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Step 5 Preview is StepFun’s flagship AI model for agentic coding, professional knowledge work, and financial analysis.
StepFun’s flagship multimodal reasoning model.