AITOPAI热报

Step 3.5 Flash 2603

StepFun·China·Released 2026-04-02
Open weightsGeneral LLMReasoningTool use
250Kcontext
$0.105 / $0.314per 1M tokens (in / out)
—parameters
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Specs

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Context window250K
Max output250K
Parameters—
Knowledge cutoff2025-01
Licence—
Commercial useUnknown
InputText
OutputText
Familystep

API price

USD per 1M tokens
Input$0.105
Output$0.314
Cached input$0.0209
Change history
2026-10-22Price $0.1/$0.3 → $0.105/$0.314models.dev

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