Step 3.5

StepFun·2 Models·Per 1M Tokens

StepFun's Step 3.5 Flash - a fast chat model with tool use and prompt caching support.

Chat

Included Models

Model	Context	Max Output	Official Price	Platform Price	Discount	Actions
step-3.5-flash Available⚡Cache 80% off Tool Use	256K	256K	Input$0.10 Output$0.30	Input$0.10 Output$0.30	-
step-3.7-flash Available⚡Cache 80% off JSON ModePrompt CacheTool Use	256K	256K	Input$0.1985 Output$1.19	Input$0.1985 Output$1.19	-

step-3.5-flashAvailable⚡Cache 80% off

Platform Price: $0.10/1M

step-3.7-flashAvailable⚡Cache 80% off

Platform Price: $0.1985/1M