Step 3.5 Flash
Step 3.5 Flash is developed by StepFun, released 2026-02-02.
Input price
$0.10 / 1M tok
Output price
$0.30 / 1M tok
Blended price
$0.15 / 1M tok
Intelligence
16.6
69th percentile of 554 models with an Intelligence score
Coding
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Math
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Speed
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Time to first token
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Official pricing from StepFun.
Multi-gateway price comparison (OpenRouter, Together, etc.) is coming soon — not live yet.
See all of StepFun's models on its provider page, or browse the full model directory.