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Step 3.5 Flash

At a glance

StepFun's fast and efficient language model.

262K ctx$0.10/$0.30 per M
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AI Output
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Specs
262K
Context
66K
Max output
Jan 2026
Released
Capabilities
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.10/M tokens
Output$0.30/M tokens
Chat with Step 3.5 FlashGo to model