StepfunClosed Weights

Step-3

stepfun/step-3

Best Input Price

$0.21 / 1M

StepFun flash model for efficient multimodal reasoning, coding, and tool use

Context Window

65,536 tokens

Reasoning

Supported

Tool Calling

Supported

Released

2025-07-31

Inference Providers (1)

Provider	Model ID	Context	Input / 1M	Output / 1M	Action
ZenMux	stepfun/step-3	65,536	$0.21	$0.57	Docs ↗