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StepFun models

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Inference platform

Model	Context	Input	Output	Latency	Throughput	Cache	Search	Capabilities	ZDR	No Training	Regional Inference	Free AI Gateway Credit	Released

stepfun/step-5-preview

1M

$1/M

$2.70/M

1.7 s

58 tps

Read$0.05/M

—

09/20/2026

stepfun/step-3.7-flash

256K

$0.20/M

$1.15/M

6.8 s

137 tps

Read$0.04/M

—

+2

05/28/2026